Source: Historynet.com
1492: Christopher Columbus leaves Spain on his voyage to the new world.
1553: Mary Tudor, the new Queen of England, enters London.
1610: Henry Hudson of England discovers a great bay on the east coast of Canada and names it for himself.
1911: Airplanes are used for the first time in a military capacity when Italian planes reconnoiter Turkish lines near Tripoli.
1958: The first nuclear submarine, USS Nautilus, passes under the North Pole.
1977: Radio Shack unveils TRS-80 personal computer, which with Apple and Commodore would form the "1977 Trinity.” Its price and Radio Shack’s established retail outlets made it a bestseller for several years.
2004: Statue of Liberty’s pedestal reopens to visitors after being closed following the 9/11 terrorist attacks.