On this day: December 18

Published On: Dec 18 2012 12:51:38 AM CST   Updated On: Dec 18 2015 01:00:00 AM CST

America celebrates its first official day of thanksgiving, "The Nutcracker" debuts, the first "Pink Panther" short premieres, and the first nuclear power plant in America goes online, all on this day.

OTD December 18 - Cliff Palace
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1888: Richard Wetherill and his brother in-law, Charlie Mason, discover the ancient Indian ruins of Cliff Palace in Mesa Verde, Colorado. The structure, built by the Ancestral Pueblo peoples, is the largest cliff dwelling in North America.

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