June 6

1844: The YMCA was founded in London. 1850: Ferdinand Braun, who shared a Nobel Prize with Guglielmo Marconi for the development of wireless telegraphy, was born. 1925: Walter Chrysler founded the Chrysler Corporation. 1933: The first drive-in theater opened, in Camden, NJ. 1936: The first helicopter was tested in a building in Berlin, Germany. 1943: American Nobel physicist Richard Smalley, co-discoverer of a form of carbon named the buckminsterfullerene ("buckyballs"), was born. 1944: The D-Day Invasion in Europe (Operation Overlord) took place during World War II as 400,000 Allied forces stormed the beaches of Normandy, France, where more than 6,000 U.S. troops gave their lives (communiqué from General Eisenhower). 1967: Arabs announced an oil embargo against the U.S. and Britain for support of the Israelis in the Six Day War. 1971: Soyuz 11 was launched. 1995: U.S. astronaut Norman Thagard, aboard the Russian space station Mir, broke NASA's space endurance record of 84 days, one hour and 16 minutes. 2006: Three planned explosions demolished the temporary water retaining wall at the Three Gorges Dam on the Yangtze River.