Here’s a look at some interesting events that took place on this day in history:

1940 – Ancient cave paintings are discovered in Lascaux, France (More info)

1953 – Senator John Fitzgerald Kennedy of Massachusetts marries Jacqueline Lee Bouvier (More info)

1958 – Jack Kilby demonstrates the first integrated circuit, something which is used in virtually all electronic equipment today (More info)

1959 – 'Bonanza,' the first regularly scheduled TV program presented in color, premieres (More info)

1990 – Representatives from the US, Great Britain, France, and the Soviet Union give up all occupation rights in Germany, clearing the way for East and West Germany to reunite (More info)