THIS DATE IN HISTORY: JULY 17
In 1821, Spain ceded Florida to the United States.
In 1898, during the Spanish-American War, Spain surrendered to the United States at Santiago, Cuba.
In 1917, the British royal family adopted the name Windsor.
In 1935, the entertainment trade publication Variety ran its famous headline, "Sticks Nix Hick Pix" (possibly translated as "rural areas reject rural-themed movies").
In 1938, aviator Douglas Corrigan took off from New York, saying he was headed for California; he ended up the next day in Ireland, earning himself the nickname "Wrong Way Corrigan."
In 1945, President Harry S. Truman, Soviet Premier Josef Stalin and British Prime Minister Winston S. Churchill began meeting at Potsdam in the final Allied summit of World War II.
In 1948, Southern Democrats opposed to the nomination of President Harry S. Truman met in Birmingham, Ala., to endorse South Carolina Gov. Strom Thurmond for the White House.
In 1955, Disneyland had its opening day in Anaheim, Calif.
In 1975, an Apollo spaceship docked with a Soyuz spacecraft in orbit in the first superpower link-up of its kind.
In 1979, Nicaraguan President Anastasio Somoza resigned and fled into exile in Miami.
In 1981, 114 people were killed when a pair of walkways above the lobby of the Kansas City Hyatt Regency Hotel collapsed during a "tea dance."
FIVE YEARS AGO: Michael Dukakis arrived in Atlanta to claim the Democratic nomination for president, saying, "We're working hard to make sure we have a good convention, a strong and united party."
ONE YEAR AGO: A historic accord for deep cuts in tanks and other non-nuclear arms in Europe went into effect, nearly two years after it was signed by NATO and the now-defunct Warsaw Pact.