On this day: December 20

Posted: 1:21 AM EST Dec 20, 2012   Updated: 2:00 AM EST Dec 20, 2015

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 - Brittany Murphy
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Gareth Cattermole/Getty Images

2009: Actress Brittany Murphy, best known for her roles in movies such as "Clueless," "8 Mile" and "Just Married," dies at the age of 32. The Los Angeles County coroner would later rule that the primary cause of Murphy's death was pneumonia, with secondary factors of iron-deficiency anemia and multiple drug intoxication.

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