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On this day: February 21

Published On: Feb 20 2013 11:46:53 PM CST   Updated On: Feb 21 2014 01:00:00 AM CST

The Washington Monument is dedicated, Alka-Seltzer is sold for the first time, the peace symbol is born, Malcolm X is assassinated, and Nixon heads to China, all on this day.

OTD February 21 - Land Camera
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Polaroid Corporation Collection

1947: In New York City, Polaroid Corporation co-founder Edwin Land demonstrates the first "instant camera," the Polaroid Land Camera, to a meeting of the Optical Society of America. The camera would be available for commercial sales less than two years later.

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