This Day In History: April 21

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This Day in History Video: What Happened on April 21

Rome is founded by Romulus and Remus, Sam Houston shouts Remember the Alamo during the Texas Revolution, German flying ace, the Red Baron is shot down, and Annie the play debuts in This Day in History video. The date is April 21st. The flying ace, Manfred Von Richthofe, became known as the Red Baron.

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