The original post: /r/todayilearned by /u/cuspofgreatness on 2024-12-17 19:46:29.

Original Title: TIL The Spanish were the first European settlers in the Florida Keys, and upon unearthing a burial mound on one of the southernmost keys, they named it Caya Hueso, Bone Island, a name later Anglicized into Key West. Spain officially relinquished control of Florida to the United States in 1821.