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In census of 1910 counted a United States population of 92,228,496. The 21% increase since the last census
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The American Girl Guides, renamed the Girl Scouts one year later, is formed.
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Grand Central Station, the world's largest rail terminal, opens in New York City.
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Former President Theodore Roosevelt passed away at his home, Sagamore Hill, in Oyster Bay, New York.
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On January 16, 1920 it was made illegal to sell, make, or transport any drink that contained more than one half of one percent alcohol by volume.
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Reader's Digest is founded and the first issue published by Dewitt and Lila Wallace.
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Time Magazine is published for the first time
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The NBC Radio Network is formed by Westinghouse, General Electric, and RCA, opening with twenty-four stations.
