1889 – Charlie Chaplin born
http://www.history.com/this-day-in-history/charlie-chaplin-born
1940 – Bob Feller throws no-hitter
http://www.history.com/this-day-in-history/bob-feller-throws-no-hitter
1943 – Hallucinogenic effects of LSD discovered
http://www.history.com/this-day-in-history/hallucinogenic-effects-of-lsd-discovered
1972 – Apollo 16 departs for moon
http://www.history.com/this-day-in-history/apollo-16-departs-for-moon
2007 – Virginia Tech shooting leaves 32 dead
http://www.history.com/this-day-in-history/massacre-at-virginia-tech-leaves-32-dead