6 March It Happened Today
1836 The siege of the Alamo ends.
1899 The painkilling drug aspirin is patented.
1911 Birth of former actor and US president Ronald Reagan.
1944 Birth of the New Zealand soprano Dame Kiri Te Kanawa.
1987 The Herald of Free Enterprise ferry overturns outside the Belgian port of Zeebrugge, killing 193 passengers and crew.