On this day: July 15

Published On: Jul 10 2013 04:20:40 PM EDT   Updated On: Jul 15 2014 02:00:00 AM EDT
PSY Gangnam Style video

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.