On this day: February 21

Published On: Feb 20 2013 11:46:53 PM CST   Updated On: Feb 21 2016 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 - peace symbol
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1958: The peace symbol, commissioned by the Campaign for Nuclear Disarmament in protest against the Atomic Weapons Research Establishment, is created by British professional designer and artist Gerald Holtom. The symbol is a combination of the semaphore signals for the letters N and D, standing for "nuclear disarmament."

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