On this day: May 22

Published On: May 21 2013 03:07:18 PM CDT   Updated On: May 22 2016 01:00:00 AM CDT

A former U.S. vice president is indicted for treason, the most powerful earthquake ever recorded hits Chile, "Pac-Man" makes his debut, Johnny Carson signs off, and a deadly tornado devastates Joplin, Mo., all on this day.

OTD May 22 - Ireland gay marriage
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Charles McQuillan/Getty Images

2015: The Republic of Ireland becomes the first nation in the world to legalize gay marriage in a public referendum.

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