On this day in history
1493: Christopher Columbus discovers Antigua during his second expedition.
1775: U.S. Marine Corps founded.
1911: The Imperial government of China retakes Nanking.
1938: Fascist Italy enacts anti-Semitic legislation.
1952: U.S. Supreme Court upholds the decision barring segregation on interstate railways.
1969: The PBS children's program Sesame Street debuts.
1972: Hijackers divert a jet to Detroit, demanding $10 million and 10 parachutes.
1986: President Ronald Reagan refuses to reveal details of the Iran arms sale.
1989: German citizens begin tearing down the Berlin Wall.
1997: WorldCom and MCI Communications announce a merger, the largest in U.S. history up to that time.
2008: NASA declares the Phoenix mission concluded after losing communications with the lander, five months after it began its exploration on the surface of Mars.
2009: North Korean and South Korean ships skirmish off Daecheon Island.