On this day: April 22

POSTED: 2:48 PM Apr 19 2013   UPDATED: 2:00 AM Apr 22 2015
Deepwater Horizon oil drilling rig fire

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.