On this day: March 21

Published On: Mar 18 2013 01:38:04 PM CDT   Updated On: Mar 21 2016 01:00:00 AM CDT

Alcatraz prison closes, Martin Luther King Jr. marches toward Montgomery, the U.S. decides to boycott Moscow's Olympics, and Spielberg nabs his first Oscar, all on this day.

OTD March 21 - Earth Day
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bruno sersocima/SXC

1970: The first Earth Day proclamation is issued by San Francisco Mayor Joseph Alioto.

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