On this day: August 20

Published On: Aug 19 2012 02:46:11 AM CDT   Updated On: Aug 20 2016 01:00:00 AM CDT

Charles Darwin publishes his theory of evolution, the NFL is founded, Lou Gehrig belts his 23rd career grand slam and NASA heads for Mars, all on this day.

OTD August 20 - Leon Trotsky
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1940: In Mexico City, exiled Russian revolutionary Leon Trotsky is fatally wounded with an ice axe by Spanish-born Soviet agent Ramón Mercader on the orders of Joseph Stalin. He would die the next day.

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