On this day: July 17

Published: Jul 16 2012 02:56:14 PM EDT   Updated On: Jul 17 2014 02:00:00 AM EDT

Air conditioning is born, the "happiest place on Earth" opens up, and the Beatles get animated, all on this day.

OTD July 17 - Casey Anthony
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Red Huber-Pool/Getty Images

2011: Casey Anthony is released from jail in Orange County, Florida, 17 days after being cleared of murdering her daughter Caylee.

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    A major Civil War battle ends, America gains a new state, Jim Morrison overdoses, and summer blockbusters dominate theaters, all on this day.