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- Charles Goodyear
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Public domain

1860: Charles Goodyear, the American inventor who developed a process to vulcanize rubber in 1839, dies at the age of 59 in New York City. In 1898, almost four decades after his death, The Goodyear Tire & Rubber Company was founded and named after Goodyear by Frank Seiberling.

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