On this day: July 15

Published On: Jul 10 2013 03:20:40 PM CDT   Updated On: Jul 15 2014 01:00:00 AM CDT

Jerusalem falls to the Crusaders, the Rosetta Stone is uncovered, Napoleon surrenders, the Nintendo Entertainment System debuts in Japan, and Psy unleashes "Gangnam Style" on the Internet, all on this day.

OTD July 15 - Zebulon Pike
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Public domain

1806: United States Army Lt. Zebulon Pike begins an expedition from Fort Bellefontaine near St. Louis, Missouri, to explore the south and west of the recent Louisiana Purchase. Along the way the expedition would discover the mountain that would be named Pikes Peak and found the headwaters of the Red River.

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