Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Americans Honor Flag Day VOA News Sunday is Flag Day in the United States, an unofficial holiday commemorating the adoption of the American flag 243 years ago by the Second Continental Congress on June 14, 1777. While the day passes without many Americans realizing its significance, some residents proudly display the stars-and-stripes outside their homes. The U.S. flag has gone through many iterations over the years, with Congress ordering changes in its design up until 1960, including the addition of stars whenever a new state joined the union. Today's flag has 13 horizontal stripes, representing the original 13 colonies and 50 stars representing the 50 states. First U.S. President George Washington described the flag: "We take the stars from heaven, the red from our mother country, separating it by white stripes, thus showing that we have separated from her. And the white stripes shall go down to posterity representing liberty." .