1821 – The United States takes possession of its newly bought territory of Florida from Spain
1890 – Wyoming is admitted as the 44th U.S. state.
1962 – AT&T's Telstar, the world's first communications satellite, is launched into orbit.
1973 – The Bahamas gain full independence within the Commonwealth of Nations.
1997 – In London scientists report the findings of the DNA analysis of a Neanderthal skeleton which supports the "out of Africa theory" of human evolution placing an "African Eve" at 100,000 to 200,000 years ago.