On this day: April 22

Published On: Apr 19 2013 01:48:16 PM CDT   Updated On: Apr 22 2016 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 - Zacarias Moussaoui
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Department of Homeland Security

2005: Zacarias Moussaoui pleads guilty in federal court to conspiring to kill American citizens as part of the Sept. 11, 2001, attacks. About a year later he would be sentenced to six consecutive life terms in prison. Moussaoui had been in the country taking flight training and was arrested less than a month before the attacks took place.

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