1867 – Harvard School of Dental Medicine is established in Boston. It is the first dental school in the U.S. that is affiliated with a university.
1918 – Russian Czar Nicholas II and his family were killed by Bolsheviks who held them captive for two months.
1938 – Douglas Corrigan takes off from Brooklyn to fly the “wrong way” to Ireland and becomes know as “Wrong Way” Corrigan.
1955 – Disneyland is dedicated and opened by Walt Disney in Anaheim, California.
1975 – An American Apollo and a Soviet Soyuz spacecraft dock with each other in orbit, marking the first such link-up between spacecraft from the two nations.
1981 – 114 people were killed and 200 injured in the collapse of two suspended walkways at the Hyatt Regency hotel in Kansas City, Mo.
1984 – The national drinking age in the U.S. was changed from 18 to 21.
1996 – TWA Flight 800, New York to Paris, crashed off the Long Island coast, killing all 230 people aboard.
