On This Day

What Happened on August 13, 1942

Day of the Week: Thursday

Historical Events


USAManhattan Project

The 'Manhattan Project' commences, under the direction of US General Leslie Groves: its aim - to deliver an atomic bomb
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'Calutron Girls' monitoring a mass spectrometer during the Manhattan Project. Gladys Owens, in the foreground, did not know what she was involved with until seeing this picture on a tour fifty years later.
'Calutron Girls' monitoring a mass spectrometer during the Manhattan Project. Gladys Owens, in the foreground, did not know what she was involved with until seeing this picture on a tour fifty years later.

Famous Birthdays

  • Robert Lee Stewart, American Brigadier General and astronaut (STS 41B, 51J), born in Washington, D.C.
  • Sheila Armstrong, English soprano, born in Ashington, Northumberland