On this day: July 1

Published On: Jun 28 2013 03:06:05 PM CDT   Updated On: Jul 01 2014 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 - 1904 Olympics
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Public domain

1904: The third modern Olympic games opens in St. Louis, Missouri, making them the first held outside of Europe and the first in the United States. The games, which were overshadowed by the concurrently running Louisiana Purchase Exposition, stretched out over nearly five months. Boxing, dumbbells, freestyle wrestling and the decathlon made their debuts at the event, which wouldn't return to the U.S. until 1932 with Los Angeles hosting.

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