On This Day

What Happened on April 13, 1941

Day of the Week: Sunday

Historical Events

  • Heavy German assault on Tobruk
  • Pact of neutrality between the USSR and Japan is signed.

Famous Birthdays

  • Michael Stuart Brown, American geneticist (Nobel Prize in Physiology or Medicine 1985), born in Brooklyn, New York

Famous Deaths


Person of interestAnnie Jump Cannon

Annie Jump Cannon, US astronomer (Henry Draper catalogues), dies at 77

Astronomer Annie Jump Cannon
Astronomer
Annie Jump Cannon