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 - Forrest Mars
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Mars, Inc.

1999: Forrest Mars Sr., the American businessman who created M&M's and the Mars bar, dies at the age of 95 in Miami, Florida. He was the son of candy company Mars, Inc. founder Frank C. Mars and a driving force in the company. He had amassed a fortune of $4 billion at the time of his death, ranking him 30th in Forbes magazine's list of richest Americans.

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