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 - The Communist Manifesto
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Public domain

1848: Karl Marx and Friedrich Engels publish "The Communist Manifesto." The short book presents the authors' theories about the nature of society and politics and features their ideas for how the capitalist society of the time would eventually be replaced by socialism, and then eventually communism. Since its publication, it has since been recognized as one of the world's most influential political manuscripts.

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