ON JUNE 24, 1968, "Resurrection City," a shantytown constructed as part of the Poor People's March on Washington, D.C., was closed down by authorities.
In 1497, the first recorded sighting of North America by a European took place as explorer John Cabot spotted land, probably in present-day Canada.
In 1509, Henry VIII was crowned king of England; his wife, Catherine of Aragon, was crowned queen consort.
In 1793, the first republican constitution in France was adopted.
In 1807, a grand jury in Richmond, Va., indicted former Vice President Aaron Burr on charges of treason and high misdemeanor (he was later acquitted).
In 1939, the Southeast Asian country Siam changed its name to Thailand. (It went back to being Siam in 1945, then became Thailand once again in 1949.)
In 1947, what's regarded as the first modern UFO sighting took place as private pilot Kenneth Arnold, an Idaho businessman, reported seeing nine silvery objects flying in a "weaving formation" near Mount Rainier in Washington.
In 1948, Communist forces cut off all land and water routes between West Germany and West Berlin, prompting the western allies to organize the Berlin Airlift.
In 1957, the U.S. Supreme Court, in Roth v. United States, ruled 6-3 that obscene materials were not protected by the First Amendment.
In 1983, the space shuttle Challenger — carrying America's first woman in space, Sally K. Ride — coasted to a safe landing at Edwards Air Force Base in California.
In 1997, the U.S. Air Force released a report on the so-called "Roswell Incident," suggesting the "alien bodies" that witnesses reported seeing in 1947 were actually life-sized dummies.