April 13:
A.D. 1250: Crusaders on the Seventh Crusade are defeated in Egypt and King St. Louis IX is captured.
A.D. 1598: French Huguenots are granted political rights under the Edict of Nantes.
A.D. 1640: The Short Parliament forms in England.
A.D. 1959: A Catholic edict forbids Catholics from voting for Communists.