January 27 in History

January 27 is quite a day in history, for bright things, dark events, and weird guys:

1973: The Paris Peace Accords were signed on this day to end the Vietnam War.
1945: The Nazi concentration camp at Auschwitz, Poland, was liberated by Soviet troops.
1880: American inventor Thomas Edison patented the incandescent lamp.
1832: Mathematician and novelist Lewis Carroll was born in Daresbury, Cheshire, England.