July 17

Friday 17, 1981:

Hyatt Regency walkway collapse: Two skywalks filled with people at the Hyatt Regency Hotel in Kansas City, Missouri collapse into a crowded atrium lobby killing 114.

Sunday 17, 1955:

Disneyland opens in Anaheim, California.

Sunday 17, 1791:

Massacre at the Champ de Mars, Paris, during the French Revolution. 1200-1500 people were killed, including women and children.

Saturday 17, 1762:

Catherine II becomes tzar of Russia upon the murder of Peter III of Russia.

Thursday 17, 1203:

Fourth Crusade captures Constantinople by assault; the Byzantine emperor Alexius III Angelus flees from his capital into exile.