[HN Gopher] Another Roman dodecahedron has been unearthed in Eng...
       ___________________________________________________________________
        
       Another Roman dodecahedron has been unearthed in England
        
       Author : Brajeshwar
       Score  : 201 points
       Date   : 2024-01-23 11:33 UTC (11 hours ago)
        
 (HTM) web link (www.smithsonianmag.com)
 (TXT) w3m dump (www.smithsonianmag.com)
        
       | jhoechtl wrote:
       | They are to portion noodles
        
         | taneq wrote:
         | Not to decide the outcome of fantasy combat?
        
           | emiliobumachar wrote:
           | Sex toy. Definitely sex toy.
        
             | SketchySeaBeast wrote:
             | It's kind of like a mix between the thunderdome and a thumb
             | war, but also not.
        
             | bregma wrote:
             | Anything is a sex toy if you're brave enough.
        
         | dejj wrote:
         | No.
         | 
         | > it's been buried for 1,700 years
         | 
         | https://en.wikipedia.org/wiki/Spaghetti#History says:
         | 
         | > The first written record of pasta comes from the Talmud in
         | the 5th century AD
         | 
         | > In the West, it may have first been worked into long, thin
         | forms in Sicily around the 12th century
        
           | Astraco wrote:
           | You must be fun at parties
        
             | Buttons840 wrote:
             | Keeping the mystery alive is fun
        
       | Loughla wrote:
       | My favorite thing about archaeology is that if they have no idea
       | whatever about the things they find. . .
       | 
       | >were used for ritualistic or religious purposes
       | 
       | Don't know what it is? Religion baby.
        
         | Angostura wrote:
         | It's kind of a running joke amongst archeologists themselves.
        
           | dejj wrote:
           | See: "Motel of the Mysteries" by David Macaulay
           | 
           | > "that the toilet seat is a sacred collar one must wear
           | before shouting, down the hole, to the gods below"
           | 
           | https://scifi.stackexchange.com/questions/162247/humorous-
           | st...
        
           | ertian wrote:
           | See also paleontologists, and "it was probably for attracting
           | a mate and/or regulating body temperature".
        
         | deely3 wrote:
         | Don't forget fertility rituals.
        
         | stabbles wrote:
         | Similarly the overuse evolutionary biology.
         | 
         | Obviously this ... seemingly useless feature must have been ...
         | crucial to survival of this species.
         | 
         | I guess Thomas Kuhn calls this ordinary science. Explanation
         | within the framework. But it's incredibly dull
        
           | yreg wrote:
           | But in biology, any single feature is just a random mutation
           | + not enough evolutionary pressure to weed it out. ('Crucial
           | to survival' is a stretch.)
           | 
           | How can the evolutionary explanation be overused? It
           | literally applies in case of and explains any single feature,
           | no?
        
             | stabbles wrote:
             | The equivalent of "this behavior too can be explained by
             | the laws of natural selection" in physics would be "this
             | object too follows the laws of Newtonian mechanics".
             | 
             | Usually solving the paradox (something looks redundant, but
             | must be useful in some way) requires some creativity, but
             | ultimately it's always a rather boring confirmation of the
             | theory.
             | 
             | The danger of normal science is that scientists turn "it
             | can be explained by the theory" into "it must be explained
             | by the theory".
        
           | SamBam wrote:
           | I mean, in general, yes that is true in biology.
           | 
           | The energy required to maintain bodily structures mean that
           | they tend to be relevant to evolutionary fitness. There are
           | very few structures that are entirely irrelevant, even if the
           | specific difference in form between different populations may
           | be the result of genetic drift.
           | 
           | That said, I think your example would work by replacing it
           | with "sexual selection." Don't know why bird feathers have
           | complex micro-structures allowing them to reflect UV light?
           | Let's just call it "sexual selection."
        
         | NL807 wrote:
         | Or when they find dicks, drawn, sculpted, or otherwise:
         | 
         | >it must be a fertility symbol
         | 
         | The ancients didn't do dick jokes/humour apparently.
        
           | huytersd wrote:
           | Well the Indians still worship Shiva's penis. Look up Shiva
           | lingams. I like to think about what it would be like if
           | Christians prayed to Jesus' dick sometimes.
        
             | eigenket wrote:
             | A very very large number of Christians have prayed if not
             | to then at relics purported to be (parts of) Jesus' dick.
             | 
             | https://en.wikipedia.org/wiki/Holy_Prepuce
        
           | morelisp wrote:
           | Lots of dick jokes are also fertility symbols / rituals
           | today.
        
         | Someone wrote:
         | " _ritualistic_ or religious", and "ritual" has a very broad
         | meaning. https://en.wikipedia.org/wiki/Ritual: _"Even common
         | actions like hand-shaking and saying "hello" may be termed as
         | rituals."_
         | 
         | It almost boils down to "we can't think of a way in which this
         | got anybody (better) fed, clothed or housed"
        
       | taneq wrote:
       | One theory (albeit contested) is that they were used as a jig to
       | knit gloves: https://www.youtube.com/watch?v=76AvV601yJ0
        
         | gaazoh wrote:
         | That's kind of neat, but it looks too complex of an object for
         | that purpose. A knitting spool (aka a jig to knit gloves) can
         | be as simple as wood ring with nails around it. Even though it
         | might work, it looks way too precious for such a common tool.
         | 
         | See https://en.wikipedia.org/wiki/Spool_knitting for pictures
        
         | wirrbel wrote:
         | > The Historian Richard Rutt conservatively suggests that
         | knitting originated in Egypt between 500 and 1200 A.D.
         | 
         | Haven't watched the video but the evidence for knitting in
         | England under Roman rule certainly isn't there. There were
         | other methods to make knitting-like garments though so maybe
         | this is explained in the video but I doubt that Romans knitted
         | with this
        
           | nerdponx wrote:
           | I never considered that knitting might be so relatively new.
           | Knitted wool clothing seems like an essential item for
           | staying comfortable in cold wet weather. Did Europeans just
           | rely on furs and skins before then?
        
             | adrian_b wrote:
             | No, they used woven wool garments (or felt).
             | 
             | Any Roman male would use only woven wool clothes. Thinner
             | fabrics, like linen or expensive imported silk or cotton
             | were normally used only by women. Men who used them were
             | derided as effeminate.
             | 
             | Moreover, knitted wool is mostly suitable only for
             | undergarments, as it does not offer enough protection
             | against water and wind.
             | 
             | Knitting provided more comfortable clothing, but it was not
             | a necessity. There is no surprise in its late development.
        
             | hprotagonist wrote:
             | there are other ways to make yarn into flexible clothes:
             | https://en.wikipedia.org/wiki/N%C3%A5lebinding is fairly
             | old -- mid-bronze age
             | 
             | Felting and weaving (or both) are also quite old.
             | 
             | Interestingly, the spinning wheel isn't: woven textiles
             | produced in europe before the 13th century would have been
             | produced with yarn or thread made on drop spindles:
             | https://en.m.wikipedia.org/wiki/Spindle_(textiles), and
             | anything spinning-wheel-esque probably developed no earlier
             | than c. 200-1000 globally.
        
           | hprotagonist wrote:
           | and naalbinding needs simpler tools.
        
         | tristramb wrote:
         | The use of these for knitting the fingers of gloves is
         | obviously correct. It explains so many things about them:
         | 
         | Their distribution (northern Europe - where you might need
         | gloves). The knobs (to loop the wool round). The differing
         | sizes of the holes (to fit fingers of different sizes).
         | 
         | To say that the functions of these is unknown is just lazy
         | journalism.
         | 
         | I am sure if one of these had been handed to my late
         | grandmother, who was a keen knitter, she would have recognised
         | what it was for immediately.
        
           | quacker wrote:
           | It's a good theory, but not obvious at all.
           | 
           | - It is not known that that the Romans used knitted clothing.
           | Knitting was invented later.
           | 
           | - Knitting can be done with cheaper, easier to craft tools
           | that are just as effective. Knitting doesn't explain the cost
           | and skill required to craft the dodecahedrons.
           | 
           | - There is no wear on these dodecahedrons that we'd normally
           | expect from a well-used tool.
        
             | helpfulContrib wrote:
             | Technically, this is not necessarily knitting, its
             | crocheting ..
        
           | eigenket wrote:
           | There are examples known without the big holes in, which seem
           | pretty much impossible to use for knitting.
        
       | NooneAtAll3 wrote:
       | inb4 it was ancient fidget spinner
        
         | JKCalhoun wrote:
         | Durn, you beat me.
        
       | RecycledEle wrote:
       | Just because a measuring device is not standards referenced does
       | not mean it can not be used to measure.
       | 
       | If I need a peg to match the size of a drill bit, any collection
       | of 12 holes is likely to have one the size of the drill bit that
       | lets me tell my peg maker to "make the pegs this size."
       | 
       | Handymen are just cussed enough* to not label any of them, and to
       | expect the FNG (new guy) to remember which of the 12 unlabeled
       | holes was the one.
       | 
       | * Cussed enough is a slang adjective that describes someone who
       | does things that annoy people. We say it in Texas, but I do not
       | expect everyone uses that phrase. I can not think of a standard
       | term that carries the same connotations.
        
         | hprotagonist wrote:
         | implicit knowledge is everywhere.
         | 
         | the trick is realizing that this isn't a bad thing.
        
         | actionfromafar wrote:
         | This was indeed, cussed knowledge.
        
         | bondarchuk wrote:
         | Furthermore this article only states: _"They are not of a
         | standard size, so will not be measuring devices. "_, which is
         | incorrect since for use as a coincidence rangefinder
         | (standardized to some standard) only the ratios between sizes
         | of opposite holes would need to be standardized, not the size
         | of the thing as a whole.
         | 
         | The paper "Roman Dodecahedron as dioptron: analysis of freely
         | available data" (https://arxiv.org/abs/1206.0946) collects
         | measurements of opposite hole pairs for 7 artefacts for anyone
         | wanting to do their own analysis.
        
           | bombcar wrote:
           | Measuring devices do not need to be standard size if you're
           | not comparing them or following a recipe of sorts.
           | 
           | You can use anything as a "ruler" to measure something and
           | transfer that measurement to something else. It's what a jig
           | or form does, after all.
        
           | throwitaway222 wrote:
           | Seems to me the "experts" have no experience in construction,
           | so they dismiss it - which makes me dismiss them.
        
       | mrob wrote:
       | I like the theory that it's an examination piece to qualify as a
       | master metalworker. Casting a flawless dodecahedron could have
       | been a way to demonstrate your skill. The shape is somewhat
       | arbitrary: anything that's both difficult to cast and easy to
       | examine for quality would work, but once people started making
       | dodecahedrons that's what people expected and it became a kind of
       | standard.
        
         | Waterluvian wrote:
         | Interesting idea. I wonder if when comparing all 100 there's
         | indicators that each are effectively unique in their
         | manufacturing.
        
           | pwillia7 wrote:
           | I wonder if you could correlate where they're found to places
           | with high quality forge/smithing operations
        
         | JKCalhoun wrote:
         | That theory works for me. Making a wooden hammer is a typical
         | first project for the hand-tool woodworker -- so perhaps the
         | metal smith had a similar hello world.
         | 
         | My first thought was that the thing was some kind of "hub" for
         | ropes used perhaps in some tent design. I was imagining rope
         | loops passing through the holes and then looped over a stud on
         | the other side. But the article says there are no signs of wear
         | and so not a tool.
        
           | timthelion wrote:
           | This is no Hello world, this is more like a doctoral thesis I
           | think...
        
             | bee_rider wrote:
             | Maybe more like a Professional Engineering license or a
             | medical degree; to show familiarity with the standards of a
             | particular profession.
        
         | etrautmann wrote:
         | I'm not sure why there's always so much focus on purpose.
         | People build objects of geometric fascination as art objects
         | all the time. I agree with you that there need not be any
         | religious significance here.
        
           | koromak wrote:
           | But haven't these things been found all over the world? Like
           | as far as Vietnam. We've found hundreds of them.
           | 
           | "Its a cool object" doesn't quite explain its ubiquity, or
           | the fact that they are almost identical looking despite which
           | side of the globe their on. That suggests purpose to me.
        
             | Ekaros wrote:
             | Wheels and balls have also been found across the world.
             | 
             | Dodecahedrons are fundamental shapes. Thus universal. And
             | also expected size would be pretty much same. In general
             | symmetry is pleasant. So I would expect symmetric shapes to
             | come up when people have enough time and resources to build
             | them, even if they have no use.
        
               | eigenket wrote:
               | Dodecahedrons with nobs on the vertices aren't really
               | fundamental shapes. As far as I'm aware there have been
               | zero found without the nobs on, and hundreds found with
               | the nobs.
        
               | lproven wrote:
               | They are not symmetrical, though.
        
           | Towaway69 wrote:
           | Agree, why does it always have to be a religious object if an
           | object doesn't have a clear and distinct purpose attached to
           | it.
           | 
           | I guess when future archeologist dig up our junk they'd
           | believe we were an extremely religious society, with many
           | superstitions and strange beliefs. /s
        
             | marcosdumay wrote:
             | "Ritualistic" doesn't mean "religious".
             | 
             | All it means is that the way the object was used has no
             | relation to the functionality of the object itself.
        
             | stevage wrote:
             | The article explains that this helps answer the question of
             | why they aren't written about in the historical record,
             | which is a big question.
        
         | INTPenis wrote:
         | That just doesn't work for me for two reasons, they would have
         | been recycled almost immediately as all metals were relatively
         | precious, and why don't we find as many other training pieces?
         | 
         | And of course it goes without saying that they've appeared made
         | out of non-metal materials.
        
           | mrob wrote:
           | They're small enough that I can imagine people holding onto
           | them. The hollow construction also reduces the quantity of
           | metal used. And it's possible that we find other training
           | pieces but don't recognize them as such, because the other
           | ones could have practical uses.
        
           | ransom1538 wrote:
           | Yes and no. I respect the "they would have been recycled"
           | argument, but, there would still be _some_. If you were good
           | enough to cast a Dodecahedron, you are probably rich enough
           | to keep your best one, to show off to all the new hipster
           | kids.
        
             | INTPenis wrote:
             | Any metal we find after 2000 years is a miracle. So the
             | amount of these dodecahedrons indicate that there were a
             | lot more in circulation at the time.
             | 
             | 2000 years of poor and homeless people looking for any
             | metal they can sell as scrap.
             | 
             | That's why I don't buy the apprentice argument that always
             | pops up in these discussions.
             | 
             | In this case you'd be excused for saying it's some sort of
             | ritualistic object. Because rituals are important in
             | people's lives, important enough to create and carry around
             | metal and stone objects with you. And rituals pervade all
             | of society.
             | 
             | I don't claim to know what it is, but I think it was either
             | very important to some ritual, or very practical to some
             | trade.
        
               | nemo wrote:
               | >Any metal we find after 2000 years is a miracle.
               | 
               | That's not really true. There's regular finds of hoards
               | of thousands of ancient coins that are in excellent
               | condition, esp. Roman coins. You'll find there's an
               | actually quite a large number of ancient metal artifacts
               | archaeologists have discovered if you look into it.
               | Certainly the preservation rate is very low since people
               | tend to guard metal objects and recycle them, but things
               | happen, today archaeologists estimate there's something
               | in the order of 10-30 millions of Roman coins that have
               | been recovered in museum collections and held by private
               | owners.
               | 
               | This depends on the metal, of course, iron preserves
               | poorly as does bronze, so those are rare, but gold
               | preserves extremely well, and silver better than bronze,
               | esp. in drier conditions.
        
               | ransom1538 wrote:
               | Yes. Humans really liked burying things. Burying prized
               | or expensive objects was pretty normal in human history.
               | Layers of dirt only piled on with time. I don't think
               | humans did much Archaeology pre-19th century. There are
               | buckets of ancient coins. I leave this evidence of old
               | metal laying around: "The Horses of Saint Mark, also
               | known as Triumphal Quadriga, 2nd or 3rd century CE, via
               | Basilica di San Marco, Venice"
        
               | INTPenis wrote:
               | But the very fact that people buried them proves how
               | sought after they were.
               | 
               | And of course if something is buried, and everyone
               | involved dies before retrieving it, then it survives. But
               | a lot of circumstances have to line up for that to
               | happen.
        
               | nemo wrote:
               | They were very sought after, but it was very common for
               | folks to put their money in a sealed ceramic pot to
               | protect and hide it, either buried under the floor of
               | their home somewhere or outside in some secret spot.
               | There were regular wars, plagues, invasions, and other
               | civic chaos that left many of these hidden troves long
               | buried until someone later found them. Ancient peoples
               | buried a lot of metal artifacts for burials or rituals
               | (the Celts buried a _lot_ of weapons in their rites) that
               | have been recovered as well. Lots of circumstances need
               | to line up, but the ancient past had many very chaotic
               | eras. With metal detectors large numbers of troves are
               | being rediscovered.
        
           | yendor wrote:
           | They wouldn't be recycled if they were also used as a
           | credential for quality of work. If you're a metal worker who
           | wants to migrate to a new town, and wants to work at my
           | forge, how do I know you can do quality work? Sure, these
           | could be stolen but I'm assuming a master metal worker knows
           | the right questions to ask to verify it's legitimate.
        
             | INTPenis wrote:
             | I don't think ancient roman society worked that way.
             | Traveling is expensive first of all, carrying stuff if even
             | more expensive. You carry what you need, not metal
             | trinkets.
             | 
             | And also your reputation is based mostly on word of mouth.
             | That's how it still works in rural societies today.
             | 
             | If there were any such certification for metalurgists it
             | would have been a small one like a ring or a bracelet.
        
               | MichaelZuo wrote:
               | Ancient Roman society was not Medieval Europe, there was
               | very little serfdom, especially among those with any
               | skill whatsoever, so plenty of people moved from place to
               | place, likely dozens or hundreds of times in their lives.
               | 
               | There were plenty of captured slaves from conquered
               | peoples, but skilled metalworkers would hardly belong to
               | that group.
        
               | garciansmith wrote:
               | The vast majority of people would never have willingly
               | traveled far from their birthplace, in medieval Europe or
               | the Roman Empire. This is especially true for those who
               | had few skills. You could do basic labor in your own
               | village, but how could you leave without any money or
               | support network (e.g., a family)? Why would people trust
               | you elsewhere? The dynamic was probably different in
               | larger cities, of which there were more in Roman times
               | compared to the (at least early) medieval period though.
               | 
               | This had little to do with serfdom, and practices that
               | would fit under what we might call serfdom were extremely
               | varied from time and place. It would have been very rare
               | for someone to have the means, ability, and desire to
               | move far from their home yet couldn't because they were
               | somehow legally bound to land owned by a lord (who only
               | had power over that one area anyhow).
        
               | bee_rider wrote:
               | The speculation is that there were created by advanced
               | apprentices. What we'd now call "journeymen." Most people
               | didn't move around maybe, but I wouldn't be that
               | surprised to find that they did.
        
               | throwup238 wrote:
               | They absolutely would have moved around since one of the
               | most common ways to get the apprenticeships was to sign
               | up to help with an army that was mobilizing for war.
               | Militaries needed a lot of blacksmiths to tag along as
               | support and they needed a lot of apprentices for manual
               | labor. When they came back from, they often had a little
               | more choice in where to go back to so they had quite a
               | bit more mobility over all.
        
               | InitialLastName wrote:
               | Not just that, but "head out with the military, stay
               | where you end up (or somewhere along the route)" is a
               | tried-and-true method of moving people throughout
               | history. How else would you end up with Latin dialects
               | spoken over a range from Portugal to the Black Sea?
        
               | shuntress wrote:
               | People definitely travelled. For business, religion, and
               | pleasure.
               | 
               | There wouldn't be such extensive roads if they didn't.
        
               | INTPenis wrote:
               | Sure, but for the vast majority of workers and artisans
               | they would most likely do a pilgrimage. And we have found
               | tons of little charms, even penises, but they are all
               | much smaller than any of the dodecahedrons.
               | 
               | Travel with luggage is what I was referring to as rare
               | for most people.
        
               | arp242 wrote:
               | People travelled, but regular people didn't routinely
               | travel to the other side of the empire. The road network
               | was probably used more for "local travel" than "far
               | travel".
        
             | karaterobot wrote:
             | You're right that the master metal worker should be able to
             | sniff out a fraud, but then what role does the dodecahedron
             | play? It would be like me applying to a programming job by
             | showing up with a ZIP file of some code I'd written in the
             | past, which of course I promise I didn't steal from a
             | better programmer. You'd probably give it very little
             | credence compared to either personal references or work
             | done in front of you.
        
           | throwup238 wrote:
           | Lots of artifacts have survived that were made of metal that
           | didn't get recycled and didn't serve a practical purpose.
           | After coinage, the most common metal artifacts from that time
           | period are simple pendants and jewelry. Most of them made
           | from iron and bronze rather than precious metals.
        
           | c048 wrote:
           | There are numerous tokens that people hold on to even to this
           | day, especially if it's a token symbolizing 'coming of age'.
        
         | wigster wrote:
         | my brother is a welder and he made a similar thing during his
         | training (30 years ago)
        
         | nemo wrote:
         | One thing to keep in mind is the geographic distribution of
         | these things. They're mostly found in the province of Gallia
         | and Britain, and not in other regions. There'd be a lot of
         | metalworkers in Rome and the surrounding cities in central and
         | south Italy, but no artifacts like this have been found, and
         | they've found > 100 of them now so the distribution is probably
         | significant.
        
           | lithos wrote:
           | The cities likely had some form of guild system to prove
           | claims like this.
           | 
           | The middle of nowhere you could prove yourself with a
           | standardized piece of work.
           | 
           | ___
           | 
           | Though personally I like the "glove grandma" video of her
           | crocheting gloves with the pieces.
        
             | mcphage wrote:
             | > The cities likely had some form of guild system to prove
             | claims like this.
             | 
             | > The middle of nowhere you could prove yourself with a
             | standardized piece of work.
             | 
             | Which is why it's significant that none have been found in
             | Rome, or any of the major warmer cities.
        
               | yreg wrote:
               | Why? This could have been just some local system in that
               | region.
        
               | TSiege wrote:
               | I think you and the poster are in agreement. The
               | significance is that you wouldn't need knitted gloves in
               | Mediterranean climates. So if this was for some other use
               | or as a novelty, you'd expect it evenly distributed
               | throughout the empire
        
             | imglorp wrote:
             | The knitting aid is persuasive. It fits with the geography,
             | explains the different hole sizes, and it explains the
             | knobs.
             | 
             | Here's one of those vids; there are many more:
             | https://www.youtube.com/watch?v=76AvV601yJ0
        
               | SamBam wrote:
               | I don't really buy that theory. There's no explanation
               | for why it needs to be this very-hard-to-cast bronze
               | dodecahedron, instead of just a wooden board with pegs
               | and holes, which is all that would be needed for the
               | video above.
        
               | jzebedee wrote:
               | It's possible that most were made out of common
               | materials. Only those made of something sufficiently
               | resilient survived for us to find.
        
               | prox wrote:
               | Basically a show off piece for those with enough coin!
        
               | atoav wrote:
               | Why not? If it was a common item, it would be natural
               | that there a deluxe versions for e.g. the royal
               | household.
               | 
               | The cheap and simple versions would have rotted away by
               | now.
        
               | stevenwoo wrote:
               | The article mentions that none of them exhibit wear marks
               | that are characteristic of tools.
        
               | lazide wrote:
               | Do you think show pieces in rich households would be
               | used?
               | 
               | I'd argue if they did, someone was getting fired
               | immediately.
        
               | nkrisc wrote:
               | I've seen many vases and other such vessels in the homes
               | of rich people that are not used to store liquids, but
               | instead sit there empty on a console table in the
               | hallway!
        
               | nemo wrote:
               | In that case this isn't a tool, it's a decoration. And if
               | _none_ of them are worn, then the decoration isn 't
               | imitating a knitting tool, since _some_ show wear if that
               | were its actual use.
        
               | flir wrote:
               | Annoyingly, there's no wear. It's not a tool.
               | 
               | Also: the size of the tube in French knitting isn't
               | controlled by the size of the hole, it's controlled by
               | the spacing of the pegs. You have to pass the wool over
               | the pegs, so logically the pegs should be cylindrical not
               | round. Earliest evidence for French knitting is 1535.
               | There's no evidence for knitting of any kind until
               | centuries after these things.
               | 
               | I'm going with prentice piece, based on the lack of wear.
               | You hang a diploma on the wall, you put a prentice piece
               | on a shelf for 30 years and barely touch it. (Although
               | the gold examples would argue against this, I think).
        
               | imglorp wrote:
               | Why would there be wear in metal? Maybe from hands over
               | years?
               | 
               | The peg spacing is a very good point and maybe the
               | disqualifier.
               | 
               | I'm very dubious about the knitting claim. Woven textiles
               | seem to go back 27,000 years. Knitting is just weaving,
               | with fewer steps, using sticks.
        
               | stevage wrote:
               | Is there any info about where the pieces were found? If
               | they are apprentice pieces there ought to be clues in
               | their found locations.
        
             | shuntress wrote:
             | You are trying to make the facts fit the theory.
             | 
             | Also, if we assume this were some kind of guild-related
             | standard, it becomes even more odd that they are not
             | mentioned in any accounts or records.
        
             | nemo wrote:
             | Why none in Roman North Africa or all the other provinces
             | in the east which were also "the middle of nowhere" with
             | the same needs of metal work as Gallia/Britain.
        
               | mkl wrote:
               | Cultures and traditions are different in different
               | places, even with gigabit internet and ubiquitous
               | literacy.
        
               | nemo wrote:
               | Roman North Africa was thoroughly Romanized by the era
               | these start showing up, and the eastern provinces were as
               | well. The might be some cultural reason these show up
               | where they do, seems likely, it's very, very dubious that
               | this cultural reason had to do with metalworkers
               | identifying themselves since the sort of Roman metal
               | working technology and culture around it was actually
               | very standardized across the empire at this time.
        
               | mkl wrote:
               | Well, the regions the dodecahedrons have been found were
               | mostly _not_ thoroughly Romanised, right? From
               | https://en.wikipedia.org/wiki/Roman_dodecahedron: "at
               | least 116 similar objects have been found in Austria,
               | Belgium, France, Germany, Hungary, Luxembourg, the
               | Netherlands, Switzerland and the United Kingdom".
        
               | nemo wrote:
               | No, that's not right at all. Those areas were all part of
               | the Roman empire and thoroughly Romanized as well. They
               | used generally identical Roman technologies in Britain as
               | North Africa or Italy, spoke the same Latin, used the
               | same building styles, clothing styles varied primarily by
               | how many layers they wore, they had the same legal
               | system, and shared Roman arts and culture.
               | 
               | Man of those countries speak Germanic languages now since
               | they were invaded by Germanic speaking people after the
               | Western Roman Empire collapsed, but there's still Roman
               | ruins and old Roman cities to be found in all of those
               | countries.
        
               | lazide wrote:
               | Why would they need knit mittens/gloves in North Africa?
        
               | nemo wrote:
               | I don't think they would, geographic frequency actually
               | does make the knitting tool idea more compelling, though
               | none of the dodecahedra show any sign of wear from use
               | which makes the knitting tool hypothesis sound unlikely -
               | if the dodecahedra was a tool it wasn't used frequently
               | at all. I don't think any hypothesis is all that
               | compelling, they are very much a mystery.
        
           | KingOfCoders wrote:
           | As someone from the former capital of Raetia ;-) I might add
           | "Since then, at least 116 similar objects have been found in
           | Austria, Belgium, France, Germany, Hungary, Luxembourg, the
           | Netherlands, Switzerland and the United Kingdom"
           | 
           | PS: Still humbled and amazed to find my small hometown of
           | Cambodunum (70k people) on maps of major Roman roads like
           | 
           | https://latin4everyone.files.wordpress.com/2017/09/roman_roa.
           | ..
        
           | arp242 wrote:
           | The Roman Empire wasn't homogeneous.
           | 
           | Going from Rome to Lyon was about two weeks of travel. Paris
           | and London about a month. Possibly (much) longer depending on
           | season and how much funds you had.
           | 
           | You can imagine how often the average metalworker from Rome
           | visited these places.
        
         | ragazzina wrote:
         | Why are they often found in coin hoards then? This makes no
         | sense.
        
           | throwup238 wrote:
           | They've got a lot of sentimental value to the original owners
           | of those hoards. It actually makes more sense: master
           | blacksmiths were far more likely to be wealthy enough to have
           | coin hoards and considered the objects symbolic of the trade
           | that made that wealth.
        
             | happymellon wrote:
             | So it's like a dev who's made themselves some money,
             | getting buried with their C64?
        
             | Towaway69 wrote:
             | Symbolic of their trade is for me also a good explanation.
             | Something like a guild symbol hanging on the front of their
             | workshop.
             | 
             | Or perhaps they were playing dungeons and dragons and
             | needed these multiple faced dice ;)
        
             | SantalBlush wrote:
             | A lot of folks in this thread are latching on to this
             | theory and making speculations to support it.
        
               | throwup238 wrote:
               | As is tradition in archaeology.
        
               | SantalBlush wrote:
               | It's the archaeologists saying, "Nobody knows for certain
               | how the Romans used them," and offering a variety of
               | competing theories, while people on this thread are
               | trying to finesse the facts to support the theory they
               | like.
               | 
               | So saying, "archaeologists are doing it" is demonstrably
               | untrue here.
        
               | throwup238 wrote:
               | There are plenty of academic papers written by historians
               | and archaeologists speculating about Roman dodecahedrons.
               | That's where most of these ideas are coming from.
               | 
               | You just won't find them in HN comments for obvious
               | reasons.
        
           | jjtheblunt wrote:
           | it could be coincidence, since people with metal detectors
           | looking for coins find them. there could perhaps be more, but
           | not where coin searching with metal detectors is common?
        
         | bee_rider wrote:
         | That's a neat idea.
         | 
         | > "It is an example of very fine craftsmanship, finished to a
         | high standard."
         | 
         | Nice, if there's an afterlife that guy is probably beaming
         | right now, haha.
        
           | saalweachter wrote:
           | https://www.smbc-comics.com/comic/after-2
        
         | subsubzero wrote:
         | So basically its just leetcode interview testing but for metal
         | workers :)
        
           | gedy wrote:
           | More like a take home project.
        
         | Levitz wrote:
         | Maybe in some 2.000 years digital archeologists will wonder
         | what in the world did we use fizzbuzz for
        
           | Aardwolf wrote:
           | Wait until they unearth fizzbuzz enterprise edition...
        
           | klntsky wrote:
           | Or monkey NFTs
        
             | someuser2345 wrote:
             | I'm currently alive, and I still don't know what they're
             | used for.
        
         | layer8 wrote:
         | That wouldn't really explain why the holes have different sizes
         | on different sides, and why some of the dodecahedrons were
         | found in wealthy women's graves.
        
           | monkeynotes wrote:
           | Maybe all of those variations are ways to demonstrate
           | mastery, like asymmetry of all the holes might demonstrate a
           | certain skill.
           | 
           | I don't have an opinion of the overall hypothesis.
        
           | tempestn wrote:
           | Seems like a wealthy person's toy/puzzle to me. Maybe it came
           | with a set of wooden balls to fit into the holes.
        
             | layer8 wrote:
             | That doesn't explain why it was predominantly found in
             | military locations.
        
         | tarikjn wrote:
         | The equivalent today would be 3Dbenchy boats -- "we found an
         | identical boat toy design in multiple sites made of different
         | plastic materials, colors and sizes. It is spread universally
         | around the World cities, found in sites of crafts, leading us
         | to believe it is an idol of a new 21st century religion
         | predominant among workers of the arts and crafts"
        
           | pinko wrote:
           | Along these lines, if you haven't ever seen it, check out
           | _Motel of the Mysteries_ by David Macaulay. (Yes, that David
           | Macaulay!)
        
             | hiatus wrote:
             | A Canticle For Leibowitz touches on a similar theme.
        
               | ojo-rojo wrote:
               | I agree. I started with Anathem then went to A Canticle
               | for Leibowitz. Together they were a fun read, I've put
               | them both on my bookshelf.
        
             | PhasmaFelis wrote:
             | I remember "reading" that as a kid, when I was too young to
             | really understand the text, and thinking it was a horror
             | story.
        
           | bertil wrote:
           | "Also --and this didn't make sense to us either-- it doesn't
           | float, and there's no engine. Our best guess is that it's
           | meant as a comment on the fulity of life."
        
             | p1mrx wrote:
             | You can make Benchy float by slicing it with solid infill
             | in the bottom/rear, and minimal infill everywhere else:
             | 
             | https://www.thingiverse.com/thing:6076719
        
           | 1970-01-01 wrote:
           | 3D printed plastics only last a few centuries. Future
           | archeologists are not going to find these in thousands of
           | years.
        
             | altairTF wrote:
             | In the joke world they will, along with the lost of all
             | current knowldge of what the 3D boat is
        
             | nextaccountic wrote:
             | In a few decades, 3d printed metals and other long lasting
             | materias might be accessible to hobbysts
        
           | felipemnoa wrote:
           | Just like the Lenna image used in a lot of Computer Science
           | papers: https://en.wikipedia.org/wiki/Lenna
        
           | RcouF1uZ4gsC wrote:
           | If you try hard enough you could probably come up with some
           | resemblances to male/female parts and thus classify this as
           | belonging to a fertility cult.
        
           | s0rce wrote:
           | or one of these: https://www.ebay.com/itm/304770714900?chn=ps
           | &norover=1&mkevt...
        
         | yetanotherloser wrote:
         | I like that theory too and offer a followon explanation: to
         | make a dodecahedron you must make an accurate regular pentagon
         | and this is not trivial with ancient geometric methods, you
         | need to have learned a thing or two to get there. This makes it
         | a better test than, say, an icosahedron. But we do know that
         | the Roman empire wasn't completely unfamiliar with icosahedral
         | dice, probably for a magical or divinatory purpose rather than
         | determining whether your wizard made her saving throw.
         | 
         | An analogy to this "masterpiece" theory might be the
         | industrial-age "Turner's cube" that demonstrates a pretty solid
         | level of ability with a lathe.
        
           | whoopdedo wrote:
           | > probably for a magical or divinatory purpose rather than
           | determining whether your wizard made her saving throw.
           | 
           | Why should I assume humans playing recreational games is a
           | recent invention?
        
             | yetanotherloser wrote:
             | Board games are much older than the Romans, though possibly
             | not older than writing - and texts give us a bit of a clue
             | that some early ones were part recreation part ceremonial.
             | By Roman times pure recreational games were common and
             | reasonably often referenced in their literature. They
             | definitely used cubic dice with numbers on for games (and
             | gambling). The icosahedral dice usually have Greek letters
             | rather than numbers (occasionally symbols IIRC) which make
             | them hard to move a piece to or compare scores; we don't
             | seem to find them with game boards like we do "Latrunculi"
             | counters; there's no textual support for a game with them
             | (weak evidence, true) but there's a fair bit for strong
             | interest in divination and oracles that could use them. So
             | not a dead cert, but fairly likely for the D20s. Whereas
             | when you find a Roman D6, you can be pretty sure it's for
             | gaming and/or betting (or a thief's hit points).
        
           | kagakuninja wrote:
           | Come now... Saving rolls use icosahedrons. Old-school
           | paladins used D12 for hit points, I don't know about 5E.
        
             | yetanotherloser wrote:
             | If your DM had you use these icosahedrons for saves...
             | 
             | https://mymodernmet.com/roman-20-sided-icosahedron-dice/
             | 
             | then you really ARE old-school.
        
           | littlekey wrote:
           | >probably for a magical or divinatory purpose rather than
           | determining whether your wizard made her saving throw.
           | 
           | From a certain point of view these are the same thing
        
             | yetanotherloser wrote:
             | I had that possibility in mind, yes :-)
        
               | wddkcs wrote:
               | To add onto this, the dodecahedron was considered a
               | mystical object, the encapsulation of the highest
               | conceivable realm, that of the etheric or eternal. [1]
               | 
               | [1] https://www.math.lsu.edu/art/quantum-
               | connections/pythagoras
        
           | pclmulqdq wrote:
           | I think the current view of many scholars is that the Roman
           | D20s were for gaming use as well, if not primarily for gaming
           | use. I would love to see the most recent scholarship on this,
           | though. I assume the actual game is somewhat lost to time:
           | game rules don't generally get written down in any medium
           | that is durable enough to survive thousands of years.
        
         | Duanemclemore wrote:
         | The "Turners Cube" of the day.
        
       | lettergram wrote:
       | Looks like a good thing to store kindling in for a torch.
       | 
       | Kinda did something similar for fire arrows
        
         | Retric wrote:
         | Some of them don't have big holes:
         | https://en.wikipedia.org/wiki/Roman_dodecahedron#/media/File...
        
           | leptons wrote:
           | One of those things is not like the others, and is actually
           | very much different, so much that I have to wonder if it's
           | not some kind of cheap knock-off that isn't actually fit for
           | purpose, whatever the purpose was.
        
       | boffinAudio wrote:
       | I thought these were thought to be looms for knitting finger
       | sections for woollen gloves? I seem to recall someone testing
       | this theory and actually producing very well-fitting gloves - and
       | each of the holes in the design are a different size, to support
       | the different finger-sizes of the customer.
        
         | leptons wrote:
         | That's about as valid a guess as any other of the hundreds of
         | guesses in this thread, which are probably not valid at all.
         | 
         | There's no reason such a complex and expensive to make object
         | would be used for knitting when a simple thing carved out of
         | wood would do the same.
        
       | mildchalupa wrote:
       | I thought it was determined to be a glove finger knitting
       | apparatus.
        
         | busssard wrote:
         | thought so too
        
         | Fluorescence wrote:
         | Hmm, I'm not convinced.
         | 
         | The only geometry the knitting demonstrations justify is "pins
         | around hole". I don't see an argument for the dodecahedron
         | shape or the cast metal. A vastly cheaper wooden jig with nails
         | would service just as well and offer much better ergonomic
         | possibilities, like a handle. The knitting with the finger
         | growing inside the dodec looks unhelpful and implausible.
        
           | JoeAltmaier wrote:
           | Romans had mass production facilities for some things.
           | Possibly gloves. So a durable permanent jig is not an
           | unreasonable suggestion.
        
             | bee_rider wrote:
             | I think the objection is not about unnecessary durability,
             | but unnecessary complexity; you don't need so many faces to
             | make a glove.
        
               | marcosdumay wrote:
               | If the thing was for making gloves, the faces would be
               | for different finger sizes.
        
               | lproven wrote:
               | The holes in them _are_ of different sizes.
        
               | ertian wrote:
               | Unnecessary complexity & expense, and if it were part of
               | a mass production process you'd expect to find them
               | clustered in production centers or something. These are
               | found scattered randomly and individually in graves and
               | border forts.
        
           | eigenket wrote:
           | > The knitting with the finger growing inside the dodec looks
           | unhelpful and implausible
           | 
           | There are also examples without the big holes in, which would
           | make knitting pretty much impossible.
        
             | lostlogin wrote:
             | > There are also examples without the big holes in, which
             | would make knitting pretty much impossible.
             | 
             | Gloves for children?
        
               | eigenket wrote:
               | See the icosahedron here for example
               | 
               | https://en.wikipedia.org/wiki/Roman_dodecahedron#/media/F
               | ile...
        
           | declan_roberts wrote:
           | The glove is inverted, the fingers are inserted into the
           | holes separately and sewn into the glove using the pins.
           | 
           | When you're done, you take it off and unfold it.
        
         | Grimblewald wrote:
         | It was suggested and some old bird even showed it was possible
         | to do it, but it was not a complete explanation, especially
         | given some variations in designs that made glove making hard.
         | Another plausible option is it served as a calendar of sorts.
         | Equally mundane explaining the broad distribution.
        
         | thih9 wrote:
         | Related, video showing its use in knitting:
         | https://www.youtube.com/watch?v=76AvV601yJ0
        
           | TSiege wrote:
           | I love this idea! Looks like it works brilliantly too
        
           | __MatrixMan__ wrote:
           | Even if that's the case, some mystery remains, discussed at
           | this point:
           | https://youtu.be/76AvV601yJ0?si=JQi4K8w9ZvphZ1wV&t=460
           | 
           | Presumably you'd find similar jigs for finishing the glove
           | nearby.
        
             | leptons wrote:
             | You also wouldn't need such a complex object for that.
             | These things were extremely difficult to cast in the years
             | that they were made. It would be far easier to carve a
             | similar device out of wood as a glove-making jig.
        
         | creole_wither wrote:
         | I don't think knitting existed during the time of Roman
         | Britain.
        
         | declan_roberts wrote:
         | I love seeing all of the nerdy (and wrong) explanations of it,
         | when in reality somebody's grandma took a look at it and said
         | "oh that's for sewing gloves".
         | 
         | No mention in the article for this purpose, but sometimes it
         | takes a bit for grandma info to reach the researchers.
        
           | meindnoch wrote:
           | That's a heartwarming story. Unfortunately it's bullshit.
        
         | mkehrt wrote:
         | Roman dodecahedra predate knitting by almost a thousand years.
         | The earliest known knitting was from the 11th century
         | (https://en.wikipedia.org/wiki/Knitting#History_and_culture),
         | while the earliest dodecahedra are from the 2nd century
         | (https://en.wikipedia.org/wiki/Roman_dodecahedron#History)
        
       | anentropic wrote:
       | A theory I saw recently suggested that they may have been used to
       | hold candles, as night lights (could still have had some
       | religious or ritual component too).
       | 
       | The holes all being different diameters would then relate to
       | different sized candles being needed to last all night, for
       | longer and shorter nights at different times of the year. The
       | twelve faces presumably corresponding to 12 months on the Julian
       | calendar, which was used from 45 BC - 1582 ("Some Roman
       | dodecahedrons date to as early as the first century C.E")
        
         | zilti wrote:
         | is CE the same as AD?
        
           | jffry wrote:
           | https://duckduckgo.com/?t=ffab&q=+is+CE+the+same+as+AD%3F+&i.
           | ..
        
           | anentropic wrote:
           | yes, just a non-Christian way of referring to it apparently
           | 
           | "CE (Common Era) is the secular equivalent of AD (Anno
           | Domini)"
        
           | rickcecil wrote:
           | CE means "common era" which refers to the same time period
           | that AD does, which stands for Anno Domini and means "the
           | year of our lord," which is rooted in the Christian faith.
           | 
           | You will also see "BCE" and it means Before Common Era, which
           | replaces BC, which means "Before Christ".
           | 
           | The newer terms are more inclusive.
        
             | gboone wrote:
             | > The newer terms are more inclusive.
             | 
             | To me it seems to exclude the only person referenced in the
             | original form.
        
               | mc32 wrote:
               | You're right. It's the nature of things, being inclusive
               | often means excluding an other.
               | 
               | On the other hand I'm glad we've all converted on one
               | common reference for dates and don't have one for each
               | sphere of influence, cuz then something published in
               | China vs Japan vs Taiwan vs Europe and the Americas vs
               | Egypt vs... who knows what would be messy.
        
               | KMag wrote:
               | > I'm glad we've all converted on one common reference
               | for dates
               | 
               | At least most places that use other calendars also keep
               | track of the Western year in parallel.
               | 
               | My Thai wife was born 543 years after me, even though we
               | were born in the same year. ("Hi, this is my wife, from
               | the future!") Our wedding certificate contains only the
               | Thai year. As I remember, for official purposes, Japan
               | counts years of the current emperor's reign, along with
               | an official name for each reign.
        
             | chrisco255 wrote:
             | We never canceled other religious names in our calendar,
             | including the months named after Roman gods or the days of
             | the week named after Nordic / Celtic gods.
        
               | AlotOfReading wrote:
               | The problem becomes more evident if you write the meaning
               | out in full: "anno domini nostri Christi", or the year of
               | our lord Christ. Recognizing Jesus Christ as lord
               | obviously presents some theological issues to non-
               | christians. Saying Wednesday doesn't have the same issue
               | of recognizing Odin's divinity.
        
               | weakfish wrote:
               | It's not being "cancelled"
        
             | mnw21cam wrote:
             | I quite like Neil deGrasse Tyson's take on this. In
             | science, we usually let the person that invented something
             | name it. The Christian church invented the current
             | calendar, therefore we should accept the name they gave it.
        
             | trackflak wrote:
             | "Inclusive" but meaningless.
             | 
             | The Georgian calendar (at least in the numbering of years)
             | is a Christian construct, and it therefore makes sense to
             | name year 0 after the year of Christ's birth. Whether or
             | not one acknowledges his lordship or whatever, you are
             | still operating in the Western tradition which is
             | impossible to understand without Christianity.
             | 
             | It's just petty power tripping. Some people have that need
             | to feel superior by swapping the dating system to something
             | meaningless and arbitrary. What makes this era "Common"?
             | Presumably the birth of Christ, since that's still when you
             | are setting the origin of years. So the rename is utterly
             | pointless. It's still A.D and should be referred to as
             | such.
             | 
             | I'd have more respect if these revisionists went full
             | Jacobin and plonked Year 1 down as some new date, and named
             | the calendar after something new.
        
           | SketchySeaBeast wrote:
           | Yes. "Common Era" instead of "Anno Domini". More religiously
           | neutral.
        
             | cityofdelusion wrote:
             | It's start date is still a religious event, so I'm not sure
             | it's more neutral as much as it's more obfuscating.
        
               | drewcoo wrote:
               | It was not exactly methodically chosen by Dionysius
               | Exiguus in the 6th century. Mostly to replace
               | Diocletian's calendar.
               | 
               | Jesus was most likely born before 1 AD.
        
               | CobrastanJorji wrote:
               | Sure, but it's an incredible amount of work to change the
               | year numbering, and it's easy to change the word we use
               | for the calendar.
               | 
               | The French revolutionaries tried it, and they discovered
               | that no matter how much people agree with the idea and
               | want to switch in theory, it's really, really hard to do.
               | 
               | Mind you, the French Republican calendar was a LOT of
               | changes, all at once. First, they started counting over
               | at year 1.
               | 
               | That'd be a big enough change, but they also decided to
               | use a calendar with 12 months with nice secular, names,
               | each with 3 weeks, where a week had ten days with nice,
               | secular names (plus some extra days on the end of the
               | year as needed).
               | 
               | That'd be a huge change, but they also decided to switch
               | to the decimal system, so a day would have exactly 10
               | hours of 100 minutes each. And that turned out to just be
               | way too much, and the whole thing fell over.
               | 
               | Anyway, that's kind of tangential to your point, but I
               | just like thinking about the French Republican calendar.
               | I hope you have a happy 4th of Pluviose, Ere Republicain
               | 232.
        
           | bregma wrote:
           | Yes. It's the plain English version of "AD", which is Latin.
           | English was good enough for Jesus in the Bible to speak, so
           | it should be good enough for the rest of us instead of this
           | high-falutin' shibboleth language they only teach at the
           | likes of Oxford and Cambridge.
        
             | mc32 wrote:
             | Uhhhhm my high school had it as an elective, and it was no
             | Oxbridge school. Over the last few decades Latin has been
             | defunded though.
        
             | cityofdelusion wrote:
             | The plain English is "in the year of our Lord", if anyone
             | else is confused with the dripping sarcasm.
        
         | anentropic wrote:
         | OTOH:
         | 
         | https://en.wikipedia.org/wiki/Roman_dodecahedron#/media/File...
         | 
         | it's interesting that one has no holes but varying sized corner
         | knobs instead, and 20 faces instead of 12
         | 
         | the objects seem related, but the purpose of the latter can't
         | have anything to do with candles presumably
        
           | drewcoo wrote:
           | 20 faces and 12 verts is an icosahedron.
           | 
           | Both have 30 edges.
           | 
           | Geometry magic?
        
             | jcranmer wrote:
             | The icosahedron and dodecahedron are duals of one another:
             | each vertex of one corresponds to a face of the other and
             | vice versa. All convex polyhedra satisfy the property that
             | V + F = E + 2, and since the dual polyhedron conserves the
             | quantity V + F, consequently, dual polyhedra have the same
             | number of edges.
        
         | JKCalhoun wrote:
         | This internet ... I had only to wonder if someone had created a
         | 3D model of one, search, and I hath found (first hit):
         | 
         | https://sketchfab.com/3d-models/roman-dodecahedron-235a956d1...
        
           | Towaway69 wrote:
           | Thanks for sharing.
           | 
           | It shows that the holes had various sizes and it could also
           | possible be that they had lids to vary the hole sizes.
           | 
           | Edit: sorry didn't read original comment. But various hole
           | sizes could also make it a toy where a child had to figure
           | out which fits to the object inside... Hm. Maybe not but hey!
        
         | krisoft wrote:
         | > The holes all being different diameters would then relate to
         | different sized candles being needed to last all night, for
         | longer and shorter nights at different times of the year.
         | 
         | I don't know. There are stranger things of course, but why
         | would you care about that? If you need light you just burn the
         | candle until you no longer need the light. If it gets too short
         | you get a new candle. If you no longer need light (for example
         | because the sun has risen) you put it out.
         | 
         | Having a bunch of candles with different thicknesses, and a
         | complicated and presumably expensive tool to measure them does
         | not feel like the way to go forward.
        
           | Loughla wrote:
           | Could still hold, though. Rich people need things to spend
           | money on to indicate wealth and status. Arbitrarily difficult
           | candle holder seems like it might check that box pretty well.
        
           | bee_rider wrote:
           | Candles have been used as timers (stick a nail in a correctly
           | sized candle and it'll fall at the right time). But I heard
           | of that in regards to the colonial era US, no idea how far
           | back it goes.
           | 
           | Edit:
           | 
           | > The candle clock is an ancient technology. The first
           | recorded reference was in 520 CE in a Chinese poem by You
           | Jiangu. He described six uniform candles of equal weight and
           | thickness--each 12 inches tall.
           | 
           | https://mymodernmet.com/candle-clock-alarm/#
        
         | berkes wrote:
         | But then the versions found would have to be the same size.
         | Which they are not, according to the article.
        
         | godshatter wrote:
         | The pegs do seem to lend themselves to steadying the object on
         | a flat surface, placing one side up and one side down. This
         | would make it easier for standing something up on the top side
         | like a candle or letting something on the bottom side through
         | (not sure what).
         | 
         | If this were a candle holder, then it doesn't make a lot of
         | sense. Wouldn't a candle just slip through to the bottom side,
         | losing much of it's length inside the dodecahedron? It also
         | doesn't do anything to help if the wick gets too long and the
         | wax runs down the side. The variations on diameter of the holes
         | makes me wonder if it wasn't a stand for a pole of some kind to
         | stand upright. The different diameters of the internal holes
         | would correspond to different sizes of poles to hold up. Maybe
         | it's a flag holder or something similar?
        
           | throwway120385 wrote:
           | If it's for a night light, you might want the light to go out
           | while you sleep but before the candle is completely burned.
           | You could save money on candles that way.
        
         | otteromkram wrote:
         | I was reading a comment up about them being a masterpiece (eg -
         | final exam project before graduating apprenticeship), but the
         | geographic distribution made me think they could be hand
         | warmers, bed warmers, or room warmers. Like, light something
         | and "hang" it in the middle.
         | 
         | But, I like this theory, too, so it has my support.
        
         | nemo wrote:
         | Romans used oil lamps for lighting generally, they had dipped
         | tallow candles but the only uses we've seen of them in the
         | imperial era are ritual use at altars, and dip candle use was
         | generally later than the period the dodecahedra come from. The
         | use of tallow dip candles that look something like a modern
         | candle for illumination was adopted later than these artifacts,
         | and those candles weren't well quality controlled, you can find
         | images of them from the 500s, there's no apparent
         | standardization on size.
        
       | scottmsul wrote:
       | Having given my brother a Tungsten cube once for Christmas, it's
       | possible they just made these because they were fun and looked
       | cool.
        
         | dejj wrote:
         | It's obvious: xkcd Voynich Manuscript.
         | 
         | https://xkcd.com/593/
        
           | NL807 wrote:
           | I used to invent gibberish languages and writing as a kid.
        
           | bee_rider wrote:
           | Of course, it is a joke, but... RPG books are generally
           | written to be comprehensible to the people running the game.
           | Or at least, that is the goal.
        
             | da_chicken wrote:
             | Clearly you've never played Shadowrun.
        
             | pavel_lishin wrote:
             | That's the intent, but boy oh boy, is that not always the
             | result.
        
         | peterpost2 wrote:
         | Metals were very resource and labour intensive to make in those
         | days, I don't think there was much making these for laughs and
         | giggles. That also would would not explain why they are only
         | found in the colder parts of the roman empire.
        
       | readyplayernull wrote:
       | > A huge amount of time, energy and skill was taken to create our
       | dodecahedron, so it was not used for mundane purposes
       | 
       | That's the idea! Being difficult to make increases its value, it
       | doesn't need to have a special purpose, it could be just a desk
       | toy, a sort of mental puzzle, a showcase object of their current
       | technology.
        
         | JKCalhoun wrote:
         | Yeah, fidget spinner was my second thought as to the "utility"
         | of the thing.
        
         | Ekaros wrote:
         | There were rich people around. And they can pay for something
         | that is essentially art.
        
       | pwillia7 wrote:
       | Why wouldn't it just be a 12 sided die for gambling?
        
         | JKCalhoun wrote:
         | I think they would have mentioned if 1) each face had a
         | different symbol of some sort and 2) if the knobs showed signs
         | of having been tumbled upon.
        
         | Fluorescence wrote:
         | I quite like this and could imagine the expense of the object
         | was because it signified an officially taxed and legal gambling
         | operation or something.
         | 
         | However, I think we might we would see some wear if they they
         | were die. Might see some blobs dented or knocked off if they
         | were regularly being rolled in taverns and such.
        
           | TrueSlacker0 wrote:
           | It could be a symbol of gambling status, such that by having
           | one your money is acceptable thus allowing entry to certain
           | gambling facilities all over the place.
        
         | ransom1538 wrote:
         | They had no wear and tear. A die that expensive would be used
         | every 10 seconds for decades.
        
         | leblancfg wrote:
         | Casting this would be really hard; if that were the case you'd
         | _also_ have expected to have way more versions of it in wooden
         | (or other similar easy to fabricate) form.
         | 
         | Plus, grapefruit-sized feels like way too big for this purpose.
        
           | ramesh31 wrote:
           | Sure, but rich people love to gamble. Rich Romans even more
           | so. And we all know how much rich people love blowing their
           | money on meaningless status symbols. This is honestly the
           | highest probability IMO.
        
             | amock wrote:
             | If it's for gambling, why isn't it mentioned anywhere? Why
             | are there no mentions of games using these devices?
        
       | Torkel wrote:
       | Pet theory:
       | 
       | With future advances in material analysis science we will be able
       | to sift through the soil surrounding artefacts as this, and
       | understand and digitally reconstruct what soft materials were
       | around it.
       | 
       | This folows a trend where as time progresses we are able to
       | deduce more and more information from archeological finds.
       | 
       | As this progresses, there will be step changes in our
       | understanding of our pre-historical past.
        
       | PcChip wrote:
       | People back then loved their cats just as much as we do, maybe
       | it's just a cat toy
        
         | NL807 wrote:
         | there are small versions of this that would be too tight for
         | cats
        
           | Towaway69 wrote:
           | Think big cat, tiger toy! Perhaps there was a bell inside or
           | marble to make a sound...
        
       | boomboomsubban wrote:
       | Another armchair idea, could they have been used to detect coin
       | clipping?
       | 
       | It seems so easy to test that I feel the idea must have some
       | readily apparent flaw.
        
         | scottmsul wrote:
         | But why would it be a dodecahedron and not just a metal plate
         | with a hole in it? Seems overkill.
        
         | koromak wrote:
         | Some of them don't have any holes
        
           | boomboomsubban wrote:
           | I'll admit to knowing little, but the Wikipedia article says
           | they all have
           | 
           | >... twelve flat pentagonal faces, each face having a
           | circular hole of varying diameter in the middle, the holes
           | connecting to the hollow center.
        
       | helsinkiandrew wrote:
       | Previously on HN:
       | 
       | What were these Roman objects used for?
       | https://news.ycombinator.com/item?id=25237271
        
         | dang wrote:
         | Thanks! Macroexpanded:
         | 
         |  _The mysterious dodecahedrons of the Roman Empire_ -
         | https://news.ycombinator.com/item?id=35937540 - May 2023 (100
         | comments)
         | 
         |  _No one is certain what Roman bronze dodecahedrons were used
         | for (2018)_ - https://news.ycombinator.com/item?id=29717215 -
         | Dec 2021 (207 comments)
         | 
         |  _What were these Roman objects used for?_ -
         | https://news.ycombinator.com/item?id=25237271 - Nov 2020 (37
         | comments)
         | 
         |  _The Mysterious Bronze Objects That Have Baffled
         | Archaeologists for Centuries_ -
         | https://news.ycombinator.com/item?id=21439351 - Nov 2019 (7
         | comments)
        
       | cubefox wrote:
       | > "Roman society was full of superstition," writes the Norton
       | Disney group. "A potential link with local religious practice is
       | our current working theory. More investigation is required,
       | though."
       | 
       | That's funny. I think I stopped believing in God as a kid because
       | in all the historical articles I read, it was clear that the
       | people of the past just believed in superstition. It obviously
       | follows that our current religions are also superstitions.
        
         | dylan604 wrote:
         | Mine came from realizing all of the religions have the same
         | basic stories all credited to their deity as the cause, yet all
         | saying the other deities didn't exist or were false gods.
        
           | cubefox wrote:
           | Ah yes, that's the other good point. Really they are parts of
           | the more general incoherency: "My religion is correct, while
           | all the other religions, current or from the past, are mere
           | superstition."
        
             | CamperBob2 wrote:
             | Then there's my favorite, Pascal's Wager: "Why not accept
             | my particular God? What do you have to lose?" Advocates of
             | the Wager never seem to consider what Zeus's opinion might
             | be.
        
               | dylan604 wrote:
               | Your assumption is that the advocates of the Wager give a
               | damn about Zeus to be begin with which seems flawed to
               | me.
        
         | me_me_me wrote:
         | in this case, anything that archeologists cant explain is
         | either religious or a cultural artifact.
         | 
         | Meaning: 'We don't really know what that is.'
        
         | ToValueFunfetti wrote:
         | I'm not religious either, but I don't think the logic holds up.
         | Philosophers and scientists of the past came to all kinds of
         | ridiculous conclusions, but it doesn't follow that
         | utilitarianism or atomic theory are ridiculous.
        
           | cubefox wrote:
           | I think these theories were always more sophisticated than
           | religions. And the work of ancient philosophers is still not
           | completely outdated, e.g. Aristotle's logic holds up, albeit
           | in a limited domain. Moreover, the former theories have since
           | further increased in sophistication, while religion didn't
           | get significantly more sophisticated.
           | 
           | Though I admit your point is a good one and not so easily
           | refuted. In general it is known as the "pessimistic meta-
           | induction": Theories from the past were wrong, so we should
           | think our current theories are wrong as well. See
           | 
           | https://plato.stanford.edu/entries/realism-theory-
           | change/#Di...
           | 
           | https://plato.stanford.edu/entries/scientific-
           | realism/#PessI...
        
       | blah-yeah wrote:
       | My guess:
       | 
       | Wax, wooden, or cork plates plugged into each side via the large
       | holes.
       | 
       | On the the replaceable plates were some sort of painted or
       | engraved label, indicating something such as:
       | 
       | - a dice or other game piece
       | 
       | - a fortune or God (some other mythical image)
       | 
       | - some other game of chance type option
        
       | prirun wrote:
       | It's a model of the coronavirus.
        
       | jmpman wrote:
       | I think it's part of surveying equipment for a construction site.
        
         | bee_rider wrote:
         | For some reason that was what my mind jumped to, but the
         | details seem odd. Apparently some were notched between the
         | knobs, so it seems useful for measuring... and you could
         | imagine eyeballing lots of angles by lining up the knobs in
         | various ways. Maybe even putting a string across some knobs and
         | looking through the hole.
         | 
         | But why holes of all different sizes? And it seems weirdly
         | difficult to make a right angle.
        
       | oliwarner wrote:
       | Is this not the Githyanki artefact?
        
       | matthewfelgate wrote:
       | Dungeons and Dragons dice.
        
       | coding123 wrote:
       | Just because it's not a standard size does not mean it's not a
       | measuring device. Angles, Pythagorean helper tool, construction
       | of archways... We have so many modern tools that come in lots of
       | sizes.
        
       | Beijinger wrote:
       | Mysterious? I thought this is a solved problem. Especially also
       | taking into account the boarders of the Roman Empire and the
       | places where they were found.
       | 
       | https://www.youtube.com/watch?v=76AvV601yJ0
        
         | eyabs wrote:
         | Knitting gloves. Neat. I like that idea. Especially since they
         | were only found in the colder regions of the Roman Empire.
        
         | SamBam wrote:
         | That's a hypothesis, certainly not a solved problem. There in't
         | any other evidence for it, besides someone finding that it
         | could kind of work, and some inference about where it was
         | found.
         | 
         | Currently there's no explanation for why it needs to be this
         | very-hard-to-cast bronze dodecahedron, instead of just a wooden
         | board with pegs and holes, which is all that would be needed
         | for the video above.
         | 
         | Evidence might involve finding contemporary descriptions of
         | these, bills of sales, descriptions of Romans wearing knitted
         | gloves, etc.
        
         | ertian wrote:
         | Based on previous discussions, I don't think so. If they're
         | really for knitting gloves you'd expect to find a lot of
         | standard 'adult hand' sized dodecahedrons along with a few
         | large & small (if that), but in fact you find a whole range of
         | sizes (from tiny to gigantic), with far fewer mediums than
         | you'd expect. They don't cluster around commercial towns: were
         | people really knitting most gloves in border forts? They'd have
         | been very expensive and difficult to produce; it wouldn't make
         | sense for a master metalworker to spend weeks working on a
         | trinket for knitting gloves when it could just as easily be
         | made from wood for a fraction of the cost & effort. IIRC, they
         | don't all have the knobs & holes, or they're oddly sized, and
         | generally they're pretty nonstandard. You find them included in
         | wealthy burials: were these rich people really knitting their
         | own gloves--along with soldiers on the front lines? Why would
         | they be buried with a knitting tool specifically for gloves?
         | 
         | Altogether, it seems pretty unlikely they were an aid to
         | knitting gloves.
        
         | leptons wrote:
         | This video is mentioned multiple times in this thread and it's
         | got to be the most ridiculous take for what these things are.
         | 
         | These were expensive and difficult to cast. They are made of
         | metal which is very expensive at the time. There's no reason
         | knitting would require a complex metal cast object of this kind
         | when a wooden jig would be far easier and cheaper to produce.
        
       | CrzyLngPwd wrote:
       | It's a dog toy. Put treats in it, and the dog will spend hours
       | nudging it around trying to get the tasty treats out :-p
       | 
       | Seriously though, it's obviously for measuring out spaghetti.
        
         | ysofunny wrote:
         | it's a human toy. ask what it is for and the humans will spend
         | hours arguing about what purpose does it serve
         | 
         | I heard it was used to knit gloves somehow
        
       | RajT88 wrote:
       | This must have been the inspiration for the dodecahedrons in the
       | show "Raised by Wolves". Lots of influence from Roman history and
       | mythos (and a bunch of other places).
        
       | astro- wrote:
       | Not the most credible theory, but it reminds me of the "Hedgehog
       | in the cage" mechanical puzzle:
       | 
       | https://en.wikipedia.org/wiki/Hedgehog_in_the_Cage
       | 
       | So maybe there's a wooden/metal piece that goes inside, and the
       | challenge is to get it out?
        
       | layer8 wrote:
       | This video gives a good overview over different explanations and
       | why they were dismissed: https://youtu.be/BNrhlQE-EMg?t=30s
        
       | nmacias wrote:
       | Based on the polished rib bone / leatherwork precedent, I am
       | going to presume these were fabric-softening dryer balls.
        
       | yzydserd wrote:
       | For those in the UK, the BBC show Digging for Britain recently
       | covered the discovery of this artefact in S11E04 at the 30min
       | mark, available on iPlayer.
       | 
       | https://www.bbc.co.uk/iplayer/episode/m001ttqr
        
       | _a_a_a_ wrote:
       | Maybe a caltrop for 8-dimensional horses
        
       | mrobvioussays wrote:
       | Kids' toy. (Imagine something jingling/rattling inside)
        
       | LouisSayers wrote:
       | To me it looks like a paperweight / scroll holder.
       | 
       | The knobs are possibly for holding keys or other such items.
       | 
       | Perhaps it's an administration tool - used in hotels or for the
       | army when they've received news.
        
         | wahnfrieden wrote:
         | The protruding nubs are clearly to ensure an air gap when it's
         | pressed against some surface, for whatever that runs through
         | the holes (such as rope) to be able to slide in/out without
         | pinching.
        
           | LouisSayers wrote:
           | Which makes sense for paper, because if a table surface gets
           | wet then you don't want the bottom of the scrolls touching a
           | wet table.
           | 
           | Also if you have different sized holes you can rotate the
           | device to have the most used holes facing upwards.
        
       | bhewes wrote:
       | They look like anchors for fishing nets.
        
       | swamp40 wrote:
       | If they are important, they should appear in drawings, paintings,
       | carvings, statues, etc.
       | 
       | Someone should really be searching in these areas.
        
         | kypro wrote:
         | I wonder if anyone is AI for stuff like this? You could fairly
         | easily train a model to look through a huge number of
         | historical resources for potential visual matches to review.
        
         | mkl wrote:
         | Every old drawing, painting, carving, statue, etc., is eagerly
         | pored over by historians of that era. Roman historians know
         | about these dodecahedrons and would recognise them if they
         | appeared.
        
       | riffic wrote:
       | prototype Lament Configuration
        
       | bumblebeast wrote:
       | I thought it was a tool to make fingers for gloves.
        
       | dpflan wrote:
       | There is no mention in Roman/Latin texts anywhere of this
       | particular object, it's quite a specific thing...? Some merchant
       | probably sold it and had an inventory...right?
        
         | stevenwoo wrote:
         | They mention this in the article - one line of the reasoning is
         | that the lack of mention lends a little evidence to a non
         | Christian religious or folklore practice that would have made a
         | written record forbidden or liable to destruction by
         | authorities.
        
       | hosh wrote:
       | I remember seeing someone's demo of using them for knitting.
       | 
       | Absent any better explanation, this seems pretty reasonable to
       | me.
       | 
       | Example video: https://youtu.be/76AvV601yJ0?si=7qk7VWBHJnxubs1j
        
         | q1w2 wrote:
         | I like the idea that there is some sort of thread manipulation
         | going on here, but the videos using this for knitting don't
         | require it to be a dodecahetdron as they only use one hole and
         | five of the bulbs on the verteces.
         | 
         | Unless there's a much more complex knit happening, this isn't
         | the explanation. Maybe with multiple colors or something. Also,
         | if it were used in this common way, it's more likely that there
         | would have been many more made of wood and the device would
         | have passed down from mother to daughter rather than having
         | been lost.
        
         | mkehrt wrote:
         | This is a theory that keeps coming up on the internet. However,
         | roman dodecahedra predate knitting by almost a thousand years.
         | The earliest known knitting was from the 11th century
         | (https://en.wikipedia.org/wiki/Knitting#History_and_culture),
         | while the earliest dodecahedra are from the 2nd century
         | (https://en.wikipedia.org/wiki/Roman_dodecahedron#History)
        
           | jazzyjackson wrote:
           | yarn rots
        
       | naltroc wrote:
       | duh it's the prime radiant
        
       | FredPret wrote:
       | Can a metallurgist weigh in on this? That casting looks really
       | good to me.
        
       | wonderwonder wrote:
       | Did people not just buy things for decoration in the Roman
       | empire? Seems like we try to attach deep meaning to everything
       | discovered in older civilizations. When many could just have some
       | mundane meaningless purpose like decoration.
       | 
       | Imagine the poor future people that seek to find meaning in the
       | unearthed funko pops and gold spray painted pine cones of our
       | time.
       | 
       | Reminds me of the guy that buried flaming hot cheetos in an
       | elaborate coffin
       | 
       | https://www.youtube.com/watch?v=d6_C7z4XvOQ
        
         | gigglesupstairs wrote:
         | Yeah, someone probably made it out of passion once, others
         | liked it so much they offered him lot of money or fame, the art
         | proliferated. Some artists created similar models, some
         | modified on top of it.
        
         | stevage wrote:
         | Yes they made decorative objects, but those objects were
         | written about and depicted in art. these aren't.
        
           | wonderwonder wrote:
           | Respectfully, I find it hard to believe that every decorative
           | object was in turn immortalized in art, that seems pretty
           | recursive.
        
             | stevage wrote:
             | Not _every object_ but _every type of object_. There have
             | been hundreds of these things, and none of them have been
             | depicted elsewhere, nor described in writing that has
             | survived.
        
       | darth_avocado wrote:
       | Am totally imagining a futurama episode where everyone is trying
       | to figure out what purpose the dodecahedron was created for and
       | then Fry walks in and explains it was just a mass produced junk
       | art like "live, laugh, love" made by Crate and Barrel.
        
         | labster wrote:
         | Same here, but with Centrurion Rory Williams doing the
         | explaining in Doctor Who.
        
       | NFVLCP wrote:
       | 1. glove knitting
       | 
       | The dodecahedron Wikipedia article already mentions spool
       | knitting [1]. This awesome video shows knitting for different-
       | sized fingers on a 3d-printed replica [2]. An initial question
       | could be whether 6 equally-sized holes align with each other, or
       | if there are 12 different hole sizes for finer sizing options
       | (hard to tell from internet images). And as for no wear on the
       | tool, hardness of wool << metal. It's not as if the dodecahedron
       | is being used as a pulley block.
       | 
       | 2. Hair braiding
       | 
       | layer8 mentioned these dodecahedrons being found in wealthy
       | women's graves; I'd offer they could have been for braiding hair
       | -- seemed important to wealthy Roman women back then [3].
       | 
       | Speculative scenario:
       | 
       | Could sit in a chair with back to a table (or just lie down on
       | the floor), with hair strands laid outward from the person's
       | head. Selected strands are pulled through the dodecahedron tool,
       | and braided. The dodecahedron tool moves incrementally away from
       | the person's head as the braid forms. The knobs on the top-side
       | help organize each strand, and the knobs on the reverse (bottom)
       | side creates standoff for the braided hair to emerge. Hands-free
       | tool for making perfect mini-braids.
       | 
       | I wonder if some statues might be realistic enough to depict
       | braids [4] (and from similar time periods as dodecahedrons'
       | manufacture date) to match with a 5- or 10-strand sinnet pattern
       | (e.g., ABOK#3037) [5].
       | 
       | [1] https://en.m.wikipedia.org/wiki/Roman_dodecahedron#Purpose
       | 
       | [2] https://youtu.be/76AvV601yJ0&t=517 | from:
       | https://www.mentalfloss.com/article/514246/are-roman-dodecah...
       | 
       | [3] https://unpodipepe.ca/2017/01/31/hairstyling-ancient-roma/
       | 
       | [4]
       | https://en.wikipedia.org/wiki/Roman_hairstyles#/media/File:K...
       | 
       | [5]
       | https://books.google.com/books/about/The_Ashley_Book_of_Knot...
        
         | dejj wrote:
         | What if we "under-feather"[1] them, like dinosaurs? Then
         | dodecahedrons could be just the skeleton of the actual tool.
         | 
         | Does the spacing of the knobs allow hinging wooden elements
         | like on a Rubik's cube?
         | 
         | [1]
         | https://web.archive.org/web/20230726232243/https://www.atlas...
        
       | dumpsterdiver wrote:
       | It seems like the location these are generally found in could
       | offer clues. If they were blacksmith related I would expect them
       | to be found closer to the buildings where they would be used or
       | stored. If they're for a military related purpose (approximating
       | distances) then I would expect to find them more alongside roads,
       | and strategically relevant places. Thoughts?
        
       | mattmezza wrote:
       | There's a real chance the Roman dodecahedron could have been the
       | "fidget spinner" of Roman Empire...
        
       | jakubmazanec wrote:
       | How much Roman writing has survived? If this item was so common,
       | it's strange that it isn't mentioned more in literature.
        
         | stevage wrote:
         | Quite a lot.
        
         | arp242 wrote:
         | Lots of stuff isn't mentioned in writing. Combine the "Why
         | would I write that down, everyone already knows that?"-effect
         | with "most people weren't literate" and lots of banal every-day
         | stuff like this gets lost in time.
        
       | nsxwolf wrote:
       | It looks like a desk toy to me.
        
       | haunter wrote:
       | I like the security device theory: it's a bag lock or something
       | like that and rope(s) was going through of it in a certain
       | pattern. So couldn't be tampered with.
        
       | bimguy wrote:
       | Not sure about "grapefruit-sized" when compared to the hand
       | holding the object in the picture. Assuming it's the one they are
       | writing about. I'd say it's closer to the size of a lime. Unless
       | that person has a uniquely large hand of course.
       | 
       | Really interesting find though, never heard of these artefacts
       | before.
        
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