1756: Composer Wolfgang Amadeus Mozart was born in Salzburg, Austria.
1880: Thomas Edison received a patent for his electric incandescent lamp.
1901: Opera composer Giuseppe Verdi died in Milan, Italy, at age 87.
1944: The Soviet Union announced the end of the deadly German siege of Leningrad, which had lasted for more than two years.
1945: Soviet troops liberated the Nazi concentration camps Auschwitz and Birkenau in Poland.
1951: An era of atomic testing in the Nevada desert began as an Air Force plane dropped a 1-kiloton bomb on Frenchman Flats.
1967: Astronauts Virgil I. "Gus" Grissom, Edward H. White and Roger B. Chaffee died in a flash fire during a test aboard their Apollo I spacecraft at Cape Kennedy, Fla.
1973: The Vietnam peace accords were signed in Paris.
1977: The Vatican reaffirmed the Roman Catholic Church's ban on female priests.
1994: Figure skater Tonya Harding appeared before reporters in Portland, Ore., to say that while she'd had no prior knowledge of the attack on her rival, Nancy Kerrigan, she had failed to report "things I learned about the assault" afterward. The Senate passed a nonbinding resolution, 62-38, calling on the Clinton administration to lift the U.S. trade embargo against Vietnam.
1999: The Republican-controlled Senate blocked dismissal of the impeachment case against President Clinton and then voted for new testimony from Monica Lewinsky and two other witnesses -- but by margins well short of the two-thirds needed to oust the president.
2003: The Bush administration dismissed Iraq's response to U.N. disarmament demands as inadequate. Meanwhile, chief U.N. inspector Hans Blix charged that Iraq had never genuinely accepted U.N. resolutions demanding its disarmament and warned that "cooperation on substance" was necessary for a peaceful solution.