Today in History- 27th January

International Events:
Year Event
1880 Thomas Edison received a patent for his electric incandescent lamp.
1944 The siege of Leningrad ends after 900 days.
1945 The Red Army liberates the biggest concentration camp at Auschwitz in southern Poland.
1967 Three astronauts Grissom, White & Chaffee die in Apollo 1 tragedy.
1980 Exiled Robert Mugabe returns to Rhodesia after five years.