On this day: October 4

Published On: Oct 03 2012 08:01:41 PM EDT   Updated On: Oct 04 2013 02:00:00 AM EDT

Work begins on Mount Rushmore, Sputnik is launched into space, the pope visits America for the first time, Janis Joplin is found dead of an overdose, all on this day.

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1918: An explosion kills more than 100 and destroys the T.A. Gillespie Company Shell Loading Plant in Sayreville, New Jersey. Fires and explosions continued for three days, forcing massive evacuations and spreading ordnance over a wide area, pieces of which have been found as late as 2007.