On this day: August 20

Published On: Aug 19 2012 02:46:11 AM CDT   Updated On: Aug 20 2014 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 - Isaac Hayes
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National Archives and Records Administration

1942: Singer-songwriter and actor Isaac Hayes ("Theme from Shaft," "South Park") is born in Covington, Tennessee. Hayes is seen here performing at the International Amphitheater in Chicago at the 1973 PUSH (People United to Save Humanity) Black Expo. He died from a stroke at age 65 on Aug. 10, 2008.

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