On this day: April 22

POSTED: 12:48 PM MDT Apr 19, 2013    UPDATED: 12:00 AM MDT Apr 22, 2014 
Elian Gonzalez, 2000

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.