1780 - The British Gazette and Sunday Monitor was published for the first time. It was the first Sunday newspaper in Britain.
1804 - The Louisiana Purchase was divided into the District of Louisiana and the Territory of Orleans.
1804 - Congress orders removal of Indians east of Mississippi to Louisiana
1845 -Joseph Francis, New York NY, patents a corrugated sheet-iron lifeboat
1845 - Patent awarded for adhesive medicated plaster, precusor of bandaid
1859 - 1st sighting of Vulcan, a planet thought to orbit inside Mercury
1872 - 7.8 earthquake shakes Owens Valley, California
1878 - Hastings College of Law was founded.
1895 - King Alfonso plants pine sapling in Madrid, starts Spain's Arbor Day
1898 - In South Africa, the world's first game reserve, the Sabi Game reserve, was designated.
1913 - Dayton OH almost destroyed when Scioto, Miami, & Muskingum River reach flood stage simultaneously
1926 - The 1st lip-reading tournament held in America
1936 - The first telescope with a 200-inch diameter, reflecting mirror was shipped from Corning, New York, to Mt. Palomar Observatory in California. The lens of the Hale telescope weighed 20 tons. It was dedicated in 1948.
1937 - Spinach growers in Crystal City, TX, erected a statue of Popeye.
1942 - 20 tons of gelignite kills 21 in a stone quarry in Easton PA
1951 - The U.S. Air Force flag was approved. The flag included the coat of arms, 13 white stars and the Air Force seal on a blue background.
1953 - Dr. Jonas Salk announced a new vaccine that would prevent poliomyelitis.
1954 - US performs atmospheric nuclear test at Bikini Island
1958 - The U.S. Army launched America's third successful satellite, Explorer III.
1969 - The TV movie "Marcus Welby" was seen on ABC-TV. It was later turned into a series.
1970 - 500th nuclear explosion announced by the US since 1945
1973 - Women were allowed on the floor of the London Stock Exchange for the first time.
1982 - Ground breaking ceremonies were held in Washington, DC, for the Vietnam Veterans Memorial.
1989 - The first free elections took place in the Soviet Union. Boris Yeltsin was elected.
1991 - Fuel pipe explodes under 58th street & Lexington Ave, New York NY
1997 - The 39 bodies of Heaven's Gate members are found in a mansion in Rancho Santa Fe, CA. The group had committed suicide thinking that they would be picked up by a spaceship following behind the comet Hale-Bopp.
1999 - A computer virus named "Melissa" began infecting computers across the country
2000 - The Seattle Kingdome was imploded to make room for a new football arena.
2007 - The design for the "Forever Stamp" was unveiled by the U.S. Postal Service.