1190: Crusade-incited massacre of Jews at York
1521: Magellan reaches the Philippines, is annoyed to find people already there
1802: US Congress establishes West Point Military Academy; much later, the school provides a whole lot of really keen maps
1926: Robert H. Goddard launches the first liquid-propellant rocket
1949: First museum devoted to atomic energy opens in Oak Ridge, Tennessee
1968: US troops slaughter women and children at My Lai, Vietnam
1988: Ollie North and John Poindexter are indicted for their involvement in the Iran-Contra affair
2006: NASA announces that a satellite has glimpsed the universe’s first trillionth of a second
Add: St. Urho’s Day