When did Florida become a state?

Florida became the 27th state of the United States on March 3, 1845. It was admitted to the Union following its acquisition by the United States from Spain in 1821 under the Adams-Onís Treaty. Prior to becoming a state, Florida had been a U.S. territory and had experienced significant turmoil due to its history with Native American populations and European colonization. Its rich cultural history, influenced by Spanish, British, and Native American cultures, makes it a unique part of the United States.