80 Years Ago—Oct. 10, 1940: Hitler starts Führer-Sofortprogram to build air-raid shelters in German cities.
The National Gallery in London begins holding lunchtime concerts in the Octagonal Room every weekday for the duration.
75 Years Ago—Oct. 10, 1945: Soviet code clerk defects to US and reveals extent of Soviet spy ring in US.
In the World Series, the Detroit Tigers defeat the Chicago Cubs 4 games to 3.