On this day in 1940, cave paintings were discovered in Lascaux, France.
On this day in 1953, US Senator and future President John Fitzgerald Kennedy married Jacqueline Lee Bouvier in Newport, Rhode Island.
On this day in 1977, South African anti-apartheid activist Steve Biko died in police custody.
And on this day in 2005, Hong Kong Disneyland opened in Lantau Island, Hong Kong.