On this day: December 20

POSTED: 12:21 AM Dec 20 2012   UPDATED: 1:00 AM Dec 20 2013

The Louisiana Purchase is completed, South Carolina secedes from the U.S., Edison demonstrates his incandescent light, Elvis gets drafted, and the U.S. invades Panama, all on this day.

OTD December 20 - Louisiana Purchase
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1803: The Louisiana Purchase is completed as the territory is formally transferred from France to the United States during ceremonies in New Orleans.