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On this day: April 22

Published On: Apr 19 2013 01:48:16 PM CDT   Updated On: Apr 22 2014 01:00:00 AM CDT

Thousands rush to claim land in Oklahoma, the first nationwide Earth Day takes place, Richard Nixon dies, federal agents seize Elián González, and the Deepwater Horizon drilling rig sinks while spewing oil, all on this day.

OTD April 22 - JR Oppenheimer
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Department of Energy

1904: Physicist J. Robert Oppenheimer, often called the "father of the atomic bomb" for his role in the Manhattan Project, the World War II project that developed the first nuclear weapons, is born in New York City. He died of throat cancer at age 62 on Feb. 18, 1967.

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