[HN Gopher] Archaeologists dig up 1,400-year-old Native American...
       ___________________________________________________________________
        
       Archaeologists dig up 1,400-year-old Native American canal in
       Alabama
        
       Author : samizdis
       Score  : 151 points
       Date   : 2022-10-10 12:00 UTC (11 hours ago)
        
 (HTM) web link (www.smithsonianmag.com)
 (TXT) w3m dump (www.smithsonianmag.com)
        
       | rob74 wrote:
       | > _But when the canal was dry, it still would have made a good
       | footpath through a heavily forested area, Waselkov says._
       | 
       | I bet the canal would spend a pretty long time in an intermediary
       | state - not deep enough for canoes, but not dry enough to use as
       | a footpath. But maybe there was a footpath _beside_ the canal, as
       | there are for more modern canals (towpaths)?
        
         | kasey_junk wrote:
         | Canoes are useful in very shallow water even if the people have
         | to get out.
         | 
         | It's much easier to float a canoe while walking next to it than
         | it is to carry it.
        
           | jagged-chisel wrote:
           | How about 4-inch mud?
        
             | kijin wrote:
             | I bet canoes make decent sleds on slippery mud.
        
               | adgjlsfhk1 wrote:
               | It depends a lot on the mud.
        
               | bluGill wrote:
               | I've had my canoe in weeds so thick the bottom wasn't
               | even touching water, but I could push my paddle through
               | and not touch bottom.
               | 
               | Canoes make acceptable sleds in some situations.
        
       | bburrito wrote:
       | There is tons of stuff out there. Its a thing in construction
       | that you dont have to worry about anything archaeological below X
       | feet because X represents the lowest we have found human
       | remains(Clovis). But everybody involved with digging has stories
       | about finding stuff way below that layer. And they just cover it
       | up because nobody wants the job to be stopped.
        
       | INTPenis wrote:
       | But wait; "a canal, nearly a mile long, built for canoe travel".
       | Isn't it relatively easy to carry a canoe for a mile? Especially
       | in those days when they were a lot tougher. Why dig a canal just
       | to float canoes one mile?
       | 
       | Makes me think it was used to float heavier stuff, like goods,
       | wood, maybe even stone. Or for irrigation.
        
         | elil17 wrote:
         | Well you don't just send a canoe for the heck of it. You put
         | the goods, wood, or stone into the canoe.
        
         | Milner08 wrote:
         | They were not building it for people going out for a
         | recreational canoe. They would surely have stuff in the Canoe
         | that they don't want to carry a mile along with the canoe.
        
         | devilbunny wrote:
         | A modern aluminum canoe, or a hide-covered one, sure. A dugout,
         | which is implied in the article, not so much. And, as you say,
         | if transporting goods it would have been much less work. No
         | pack animals, so everything was moved by human power.
        
           | saalweachter wrote:
           | I expect that the people who dug this canal _did_ carry
           | dugout canoes over this same route. Knowing the alternative
           | can strongly motivate you to make the improvement.
        
         | TSiege wrote:
         | If you read the article more carefully you'd see that area in
         | question was a marsh, making it difficult to carry. It was only
         | used in wetter seasons. And the people who lived there did not
         | practice agriculture
        
         | DontchaKnowit wrote:
         | Well if you're traveling you'd have a canoe full of supplies
         | which may not be so easy to carry.
        
         | raffraffraff wrote:
         | How about dropping logs into it and pulling them along. Beats
         | wheels!
        
         | eesmith wrote:
         | If they are a lot tougher, then wouldn't they also find it
         | easier to build a canal?
        
       | fsloth wrote:
       | It's interesting that while South-American pre-colombian
       | construction projects are familiar to many (such as Aztec cities
       | and Nazca Lines, etc), it is perhaps not as well known that
       | North-American pre-columbian populations had massive civil
       | engineering projects as well e.g.
       | https://en.wikipedia.org/wiki/Poverty_Point
       | 
       | I wonder why the latter are not as well known.
        
         | altacc wrote:
         | I've read a bit around this topic and a rather plausible
         | explanation is that in North America, the European settler
         | mentality was that the north was all empty land. Acknowledging
         | the presence of native American towns, cities, farmlands,
         | etc... would have brought up the inconvenient subject of
         | ownership of the land. It was much more convenient to declare
         | the native Americans as barbarians with little culture &
         | society and the land unused and open to be claimed by European
         | settlers. Inaccurate societal tropes about native Americans
         | still persist today and education about their history is still
         | lacking.
         | 
         | South America was more populated but also the European tactic
         | was of conquest of the natives, not total eradication &
         | displacement (although they did an effective job at those as
         | well).
        
           | sho_hn wrote:
           | "1491" is a most fantastic book about all of this.
        
             | fiftyfifty wrote:
             | There was an article written by the author of 1491 in the
             | Atlantic that is a great abbreviated version of the book
             | for anyone interested:
             | 
             | https://www.theatlantic.com/magazine/archive/2002/03/1491/3
             | 0...
        
             | nkingsy wrote:
             | Relevant to this question is the story of Cortez and his
             | pigs. Spain immediately set up shop in South America,
             | giving us plenty of stories of vast civilizations, but
             | Cortez made just one minor expedition across Florida and
             | did report large cities, but only the pigs and their
             | disease stayed behind.
        
           | s1artibartfast wrote:
           | >Acknowledging the presence of native American towns, cities,
           | farmlands, etc... would have brought up the inconvenient
           | subject of ownership of the land.
           | 
           | I am highly skeptical of these types of sentiments. They are
           | simply projections of modern sensibilities to the period of
           | European settlement.
           | 
           | At the time, might by right was the default in Europe, with
           | near constant wars of conquest. outside of Europe, entire
           | islands in the Caribbean were enslaved and depopulated.
           | 
           | Given this context, I don't think information about Native
           | American towns was suppressed to protect the delicate
           | sensibilities of the settlers.
        
             | tchaffee wrote:
             | Then why in every case did they need to portray locals as
             | barbarians when they knew the opposite was true?
        
           | MockObject wrote:
           | > It was much more convenient to declare the native Americans
           | as barbarians with little culture & society and the land
           | unused and open to be claimed by European settlers.
           | 
           | Wikipedia says:
           | 
           | "The loss of the population [due to disease] was so high that
           | it was partially responsible for the myth of the Americas as
           | "virgin wilderness". By the time significant European
           | colonization was underway, native populations had already
           | been reduced by 90%. This resulted in settlements vanishing
           | and cultivated fields being abandoned. Since forests were
           | recovering, the colonists had an impression of a land that
           | was an untamed wilderness."
           | 
           | https://en.wikipedia.org/wiki/Native_American_disease_and_ep.
           | ..
        
             | krapp wrote:
             | And yet the phrase "merciless Indian Savages" is literally
             | in the Declaration of Independance.
        
               | s1artibartfast wrote:
               | What exactly does that illustrate about settlements in
               | North America?
               | 
               | Of course the Colonists knew that Native Americans
               | existed. They interacted with them constantly.
        
               | krapp wrote:
               | That the United States saw Native Americans in the way
               | that altacc described above, an "inferior" race whom
               | Europeans had a God-given right to conquer and subdue.
        
               | s1artibartfast wrote:
               | I don't think anyone was arguing contrary to the idea
               | that settlers had both the means and motive to conquer
               | and subdue the natives.
        
           | kodah wrote:
           | > It was much more convenient to declare the native Americans
           | as barbarians with little culture & society and the land
           | unused and open to be claimed by European settlers.
           | 
           | I went to a US public school in the South and also went to a
           | private school. We spent most semesters of history learning
           | about Native American civilizations, construction, and at one
           | point had to build small-scale physical replicas of their
           | cities.
           | 
           | That's to say, I don't really buy your explanation for the
           | broader US. Maybe specific pockets. What I do think is more
           | likely is that people believe that warring kingdoms were
           | still normal back then and view Native American tribes as
           | just that - kingdoms that were conquered. That much I can
           | live with, but the constant lying and taking back promises we
           | made to the Native Americans is absolute trash and should be
           | rectified.
        
             | zasdffaa wrote:
             | Cities, yeah? Big ones? I know of mesoamerican cities like
             | Tenochtitlan but I am unaware of any north american Indian
             | cities (to be fair, I'm not from the USA), so some pointers
             | would be very welcome indeed.
        
               | dreamcompiler wrote:
               | Here are two:
               | 
               | https://www.nps.gov/articles/000/cahokia-mounds-state-
               | histor...
               | 
               | https://en.m.wikipedia.org/wiki/Chaco_Culture_National_Hi
               | sto...
        
           | JoeAltmaier wrote:
           | And in the north, nothing can go much earlier than the last
           | time glaciers ground everything to dust.
        
         | [deleted]
        
         | cmrdporcupine wrote:
         | Much of it was deliberately destroyed and obscured. Large parts
         | of Cahokia were destroyed by highway and suburban development,
         | and it wasn't that city planners and officials didn't know it
         | was there. They often suppressed discoveries and tried to cut
         | archaeologists out of the loop, because the artifacts and etc
         | were in the way of development goals.
         | 
         | Many North American cities were built on top of or near where
         | native settlements were. It was in the best interests of
         | colonials and moderns to suppress or diminish findings.
         | 
         | That and North Americans were engaged in a long running
         | cultural genocide based on a mission of Christianizing a
         | 'primitive' people, which would have been undermined by
         | recognizing this area as previously occupied by a settled
         | agricultural societies.
         | 
         | https://www.amazon.ca/Cahokia-Ancient-Americas-Great-Mississ...
         | is a great book on this topic written by an archaeologist who
         | spent much of his life working around Cahokia. And he gets into
         | this issue at length.
        
           | tomcam wrote:
           | There was no long-running cultural genocide. There was tons
           | of unintentional spreading of disease, which of course had a
           | similar effect.
        
             | boomboomsubban wrote:
             | I believe you're confusing "genocide" and "cultural
             | genocide." You can argue there was no long running
             | genocide, but it's very hard to deny things like
             | residential schools or forced child abduction aren't
             | cultural genocide.
        
               | tomcam wrote:
               | I was confusing them, and I agree with your assessment.
               | Thank you.
        
             | krapp wrote:
             | https://en.wikipedia.org/wiki/American_Indian_Wars
             | 
             | There were both. The effect of European filth and disease -
             | both intentional (smallpox blankets) and not - preceding a
             | policy of cultural genocide.
        
               | tomcam wrote:
               | Smallpox blankets is an urban legend. And with good
               | reason. It would be impossible to control the effects,
               | plus their knowledge of germ theory was limited anyway.
               | 
               | https://www.historynet.com/smallpox-in-the-blankets/
        
               | krapp wrote:
               | Ok. But Andrew Jackson definitely wasn't an urban legend.
        
             | s1artibartfast wrote:
             | Is also worth noting that Cahokia was abandoned 150 years
             | before Columbus landed in North America. That by itself
             | goes a long way and explaining why explorers didn't find
             | such massive cities
        
           | stephenhuey wrote:
           | Several years ago I visited the Cahokia museum and went on
           | top of a large mound with a St. Louis native who had only
           | barely heard of it even though it's just across the
           | Mississippi River from the main part of the city. I'm hoping
           | they're able to dig up a lot of interesting finds before I
           | visit again someday.
        
         | jltsiren wrote:
         | I think the reasons are fairly obvious.
         | 
         | People remember great centralized empires. They remember
         | societies with extensive written records. Cultures that
         | impressed their conquerors. Areas with contiguity of
         | centralized civilization. Monuments that are noteworthy on the
         | global scale. When those things are missing, past societies
         | fade into obscurity.
         | 
         | Even in Europe, ancient cultures are mostly remembered from
         | their interactions with Mediterranean and Middle-Eastern
         | societies. European history effectively begins with the spread
         | of Greco-Roman influence, which in many cases was well into the
         | middle ages. Whatever there was before is now mostly forgotten.
        
         | shipman05 wrote:
         | If you want to build to last, build with stone.
        
           | scarecrowbob wrote:
           | I think I get what you are saying and certainly not trying to
           | compare you to this horrible villain...
           | 
           | but whenever I hear that sentiment I am usually reminded of
           | this quote from Judge Holden in Blood Meridian:
           | 
           | "What is true of one man, said the judge, is true of many.
           | The people who once lived here are called the Anasazi. The
           | old ones. They quit these parts, routed by drought or disease
           | or by wandering bands of marauders, quit these parts ages
           | since and of them there is no memory. They are rumors and
           | ghosts in this land and they are much revered. The tools, the
           | art, the building -- these things stand in judgement on the
           | latter races. Yet there is nothing for them to grapple with.
           | The old ones are gone like phantoms and the savages wander
           | these canyons to the sound of an ancient laughter. In their
           | crude huts they crouch in darkness and listen to the fear
           | seeping out of the rock. All progressions from a higher to a
           | lower order are marked by ruins and mystery and a residue of
           | nameless rage. So. Here are the dead fathers. Their spirit is
           | entombed in the stone. It lies upon the land with the same
           | weight and the same ubiquity. For whoever makes a shelter of
           | reeds and hides has joined his spirit to the common destiny
           | of creatures and he will subside back into the primal mud
           | with scarcely a cry. But who builds in stone seeks to alter
           | the structure of the universe and so it was with these masons
           | however primitive their works may seem to us."
           | 
           | For what it's worth, I live in the four corners area of the
           | US and regularly see stone buildings that are hundreds of
           | years old out in the desert, and the structure I live in is
           | made of wood.
        
             | AlotOfReading wrote:
             | Wood lasts essentially forever in the southwest. We have
             | dendrochronological records going back thousands of years
             | from the Colorado plateau because there's so little decay.
             | There just wasn't much of it to build with out there by the
             | classic period, so they relied more on abundant stone
             | rather than trying to drag more timbers than strictly
             | necessary the tens of kilometers from where they grew to
             | where pueblos were built.
             | 
             | You probably know this as well, but for those that don't,
             | the Anasazi are typically called "Ancestral puebloans" in
             | modern literature because it's been well established that
             | they didn't actually go anywhere, they're pretty direct
             | ancestors of the modern puebloan nations (among others).
        
           | bokohut wrote:
           | A simple and concise statement backed by undeniable proof
           | found in monuments around the world of which some modern man
           | still cannot explain as we continue to discover such
           | artifacts as our technology aided exploration expands. My
           | additional comments to this comes from personal experience in
           | this arena in the last decade of my own local discoveries
           | that are directly linked to Native and Paleo occupation on
           | the land of which I live and the surrounding area. Over ten
           | years ago now I found my first artifact laying on the surface
           | behind my house and in that time I have done hundreds of
           | hours of research and well over a thousand hours of walking
           | in which I have discovered many artifacts to date. Several
           | accredited individuals and organizations have visited my
           | location to see my finds as I attempt to get the surrounding
           | areas studied for preservation from what the experts have
           | informed me on my collection. As with anything however
           | someone must take up the preservation battle and while I
           | continue to discover items weekly my professional background
           | is not in artifacts nor land preservation. I'll close with
           | another statement for one to ponder just as shipman05 did:
           | Nearly everything humans have created that is no longer
           | needed either gets buried by another human or by nature in
           | time.
        
             | tomcam wrote:
             | Wait, you're not going to tell us what artifacts you found
             | or what country you're in? You're killing me here!
        
         | formerkrogemp wrote:
         | I spoke with an archaeologist and interpreter recently at an
         | archaeological park with mounds from the Mississippian people
         | period. They said that the archaeological park might have
         | easily been dozed over if events had turned out differently. I
         | suspect that North American pre-columbian construction is often
         | obscured by a century of modern development and centuries of
         | farming now. Much of what might have been is now crushed under
         | our tractors or buried under our malls, highways, and houses. I
         | wonder what people living here before us were like and what
         | lessons they might teach us.
        
           | AlotOfReading wrote:
           | Native Americans aren't gone, they're just quite a bit less
           | populous post-colonization. You can still find nations like
           | the Natchez and the Choctaw whose ancestors built mounds and
           | ask them.
           | 
           | [1] https://en.wikipedia.org/wiki/Natchez_people
        
             | cmrdporcupine wrote:
             | Indeed speaking in the past tense about indigenous
             | Americans is a long standing artifact of colonial ideology
             | which has the effect of diminishing the present day reality
             | of natives on this land. I was fairly recently shocked upon
             | a trip to the Museum of Natural History in NY where plaque
             | upon plaque in the section about pacific NW peoples spoke
             | about the Haida and related people in the past tense and
             | proudly displayed what were in all likelihood stolen
             | artifacts.
             | 
             | My son was sent home with homework a couple years ago that
             | spoke about the Anishinaabe (Ojibwe etc) all in past tense
             | grammar. Meanwhile we have close family friends who are
             | Ojibwe.
             | 
             | In Canada at least there has been a bit of a reversal in
             | this trend, with more recognition of the present day
             | nations. And in fact there's actually demographic growth
             | among many first nations here, while the broader European
             | settler derived society is in a demographic decline (solved
             | only by immigration).
        
               | gen220 wrote:
               | Situations like these, with the right teacher, are great
               | eye-opening moments for children.
               | 
               | I still remember a unit in US history, in which we were
               | asked to write an essay expounding on the evolving nature
               | of woman's role in American society from the antebellum
               | period through reconstruction (1820s-1890s).
               | 
               | I think just about everybody in the class interpreted the
               | question as being one about "white" women, and wrote
               | their essays accordingly.
               | 
               | The next lecture opened with this meta-fact, and rather
               | than shame us about it, she used it as a wedge to open a
               | discussion on how the overwhelming majority of writing on
               | American history is authored from a male, generally
               | Western European lens.
               | 
               | Most of our essays told of monotonically expanding rights
               | and freedom (Seneca Falls was in 1848, the various
               | feminist movements were gaining steam at the state level
               | around property rights and suffrage). But this time
               | period saw Indigenous women undergo the Trail of Tears
               | and the institutionalization of reservations and forced
               | relocation. It also saw enslaved women experience
               | Emancipation only to be followed with the failure of
               | reconstruction and the installment of Jim Crow.
               | 
               | ---
               | 
               | This was over 10 years ago, and I still remember the
               | lesson in so much detail! And find it useful when reading
               | history today. Every time we uncover a blind spot and
               | cure some ignorance, we're making progress.
        
               | tomcam wrote:
               | > what were in all likelihood stolen artifacts.
               | 
               | Or... purchased? Is there reason to believe in one vs.
               | the other?
        
               | lflfldksb wrote:
               | > And in fact there's actually demographic growth among
               | many first nations here, while the broader European
               | settler derived society is in a demographic decline
               | (solved only by immigration).
               | 
               | That's what really would be best, you know, if those
               | whites would get off that stolen land and give it back to
               | the Natives, you know?
               | 
               | I mean, there's just a connection between the historical
               | homeland of a certain People and their blood that just
               | shouldn't be violated, right? Demographically justice
               | will be done when America is inhabited primarily by those
               | who are Indigenous and have a right to the land.
               | Descendents of Colonials should be removed and sent back
               | to their historical homeland to make room for the
               | Natives.
        
               | cmrdporcupine wrote:
               | Seems you're new here. But your tone looks more
               | appropriate for Reddit or Twitter. You'll probably find
               | better strawmen to beat up on over there, while you pound
               | your chest for upvotes.
        
           | [deleted]
        
         | ch4s3 wrote:
         | I think straightforwardly the Nazca lines are totally unique
         | and pyramids of Mexico are undeniable in their impressiveness.
         | Poverty Point and the mounds are mistakable as weird hills, and
         | were mostly uninhabited by the time settlers arrived.
        
           | AlotOfReading wrote:
           | Many iconic Mexican pyramids were also weird hills before
           | they were excavated and restored in the 20th century and
           | similarly unused. Here's one example [1]. Even major cities
           | like Tikal were essentially unknown until systematic mapping
           | of the areas around the more obvious pyramids revealed their
           | true extents.
           | 
           | [1]: https://i.redd.it/jj7y8vn3lir51.png
        
             | ch4s3 wrote:
             | Yea that's true but Europeans wrote detailed accounts of
             | the structures at their apogee, documenting their use and
             | the culture of their builders. We'll, at least in some
             | places.
        
         | prepend wrote:
         | I assume it's because the SA construction projects are more
         | visible today than NA projects. Nazca lines are still visible
         | along with Inca and Maya stone buildings. NA mounds and these
         | canals are not as visible so people just can't see them and
         | walk around them as well.
        
           | spinlock wrote:
           | South America was also much more populous than North America.
           | I suspect we weren't as successful at eliminating
           | stouthearted americas culture.
        
             | bpodgursky wrote:
             | It's kind of unclear. It's also possible that because of
             | the _slower_ exploration and settlement of North America,
             | we simply never saw the large societies before they
             | collapsed from disease (especially true of the
             | Mississippian cultures) -- Europeans only came through in
             | force a hundred years later.
        
               | spinlock wrote:
               | It's so unclear. There's so much we don't know about
               | America it's pretty insane.
        
           | AlotOfReading wrote:
           | The north American equivalent of the Nazca lines (the Blythe
           | intaglios [1]) are just as visible, simply not as numerous
           | and importantly, they don't have a decades-long presence in
           | the public mind as an enduring archaeological mystery.
           | 
           | [1] https://en.wikipedia.org/wiki/Blythe_Intaglios
        
             | MichaelCollins wrote:
             | It's probably because the biggest at Blythe Intaglios is
             | about 50 meters across, while some of the Nazcal Line
             | figures are more than a kilometer across. The former seems
             | like something a handful of people could plausibly do on a
             | whim as a hobby, while the latter seems like something that
             | would require careful planning, maybe some surveying
             | techniques, and a lot more energy expenditure and manhours.
        
               | ok_dad wrote:
               | https://en.wikipedia.org/wiki/Joe_Nickell
               | 
               | This researcher and a small team re-created a method to
               | make Nazca lines in the 70's with the same tech that the
               | Nazca civilization had. People make very complex crop
               | circles all by themselves, too. It's simply a matter of a
               | bit of math and careful planning and practice.
        
               | s1artibartfast wrote:
               | Nobody is saying it is impossible, just that it requires
               | more interesting explanation. Certainly you would agree?
        
               | ok_dad wrote:
               | Not really, no. It wasn't anything crazy like aliens or
               | whatever, just humans doing engineering.
        
       | thisisauserid wrote:
       | It's a Columbus Day miracle!
        
       | [deleted]
        
       | AlabamaDuneRat wrote:
       | Interesting find!
       | 
       | For any non-locals coming across this, the large canal going
       | east-west through Mobile and Oyster bay is a recent, man-made
       | canal [0]. Linking Bon-Secour river all the way down to Little
       | Lagoon at that time would have been a significant improvement in
       | ease of access to more abundant fishing grounds.
       | 
       | 0: https://en.wikipedia.org/wiki/Gulf_Intracoastal_Waterway
        
       | smitty1e wrote:
       | Also known as 'dredging'.
        
         | defrost wrote:
         | Digging | establishing a canal is not the same as dedging ..
         | one is creating a waterway where previsely there wasn't one,
         | the other is removing sediments from an existing waterway |
         | lake | harbour.
        
         | elil17 wrote:
         | No, this is significant because it's a man made canal, as
         | opposed to the natural waterways used for trade that we already
         | knew about. It is far longer than the other Native American
         | canal we know of and likely had damns to control the flow of
         | water through it.
        
         | TSiege wrote:
         | It was not dredging. It was a sophisticated structure to
         | connect two distinct bodies of water. Per the article > "in its
         | heyday it would have stretched a little less than a mile across
         | most of Fort Morgan Peninsula, from Oyster Bay in the north to
         | Little Lagoon in the south. Both bodies of water are at sea
         | level, but the land between reaches up to six feet in
         | elevation. That means anyone digging a trench across the
         | peninsula would risk draining the water table into those sea-
         | level outlets. The solution in this case may have been two dams
         | at either end of the passageway that canoe travelers would have
         | had to carry their boats around. With a shallow draft, dugout
         | canoes would have only needed a few inches of water to pass
         | through the three-foot-deep canal."
        
         | kennend3 wrote:
         | what point were you trying to make with your half-sentence
         | response?
         | 
         | To demonstrate to everyone you don't understand what 'dredging'
         | means?
         | 
         | Allow me to google it for you:
         | 
         | Dredging is the removal of sediments and debris from the bottom
         | of lakes, rivers, harbors, and other water bodies. It is a
         | routine necessity in waterways around the world because
         | sedimentation--the natural process of sand and silt washing
         | downstream--gradually fills channels and harbors.
         | 
         | what does dredging have to do with the article?
        
           | smitty1e wrote:
           | > what point were you trying to make with your half-sentence
           | response?
           | 
           | These archaeologists are doing great work, and so my remark
           | was kind of a cheap shot and an over-simplification.
           | 
           | But the point still stands.
        
           | prepend wrote:
           | I would guess that the canal they built would need dredging
           | to stay operational. But I think the discovery is about the
           | canal itself not about what they'd have to do to operate the
           | canal. Not sure I understand GP's statement but trying to
           | find some connection.
        
       | photochemsyn wrote:
       | This area has had a stable sea level for several thousand years,
       | but that's all changing. NOAA predicts a 10-12 inch (25-30 cm)
       | sea level rise by 2050 and perhaps 3-4 times that by 2100.
       | 
       | https://www.noaa.gov/news-release/us-coastline-to-see-up-to-...
       | 
       | Of course, during the Last Glacial Maximum, sea levels were 125
       | meters lower (~25,000 - 20,000 years ago), and there's a lot of
       | evidence that the Americas were inhabitated by at least small
       | human populations by then (although many of their settlements are
       | likely now buried by marine sediments).
        
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