On this day: July 1

Published On: Jun 28 2013 03:06:05 PM CDT   Updated On: Jul 01 2016 01:00:00 AM CDT

The Battle of Gettysburg begins, America's first zoo opens, the first Tour de France starts, the Sony Walkman hits the market, the PG-13 movie rating is introduced, and the Deepwater Horizon oil spill breaks an unfortunate record, all on this day.

OTD July 1 - Armageddon
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Buena Vista Pictures

1998: The science-fiction action blockbuster "Armageddon," starring Bruce Willis, Ben Affleck, Billy Bob Thornton and Liv Tyler, and directed by Michael Bay, opens in theaters. The movie would go on to earn more than $553 million worldwide, making it the highest-grossing film of the year.

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