Maryland’s House of Delegates votes not to secede from the Union.
26 April 1954
The Geneva Conference convenes in an effort to restore peace in Indochina and Korea.
24 April 1967
The Cosmonaut Vladimir Komarov dies in Soyuz 1 when its parachute fails to open becoming the first to die during a space mission.
21 April 1506
A three-day massacre in Lisbon ends with the slaughter of over 1,900 suspected Jews by Portuguese Catholics.