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 - typewriter
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Public domain

1874: The Sholes and Glidden typewriter, the first commercially successful typewriter, goes on sale. The machine originated the term "typewriter" and was the first to feature a QWERTY keyboard layout, which slowly caught on with other manufacturers thanks to the machine's success.

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