This Day In History--July 17

1821--Spain ceded Florida to the United States.

1898--Spain surrendered to the United States at Santiago, Cuba, ending the Spanish-American War.

1917--The British royal family changed its name from the House of Saxe-Coburg-Gotha to Windsor amid anti-German sentiment during World War I.

1938--"Wrong Way Corrigan" took off from New York, purportedly aiming for California and landing in Ireland.

1945--President Harry Truman, Soviet leader Joseph Stalin and British Prime Minister Winston Churchill meet at the opening of the Potsdam Conference.

1955--Disneyland opened in Anaheim, Calif.

1975--The American Apollo and Soviet Soyuz spacecraft linked up for the first time.

1998--The last Russian Czar Nicholas II was buried 80 years after he and his family were executed by the Bolsheviks.