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Census indicates population over 100 million
For the first time, the 1920 census indicates a population in the United States over 100 million people. The 15% increase since the last census now showed a count of 106,021,537. The geographic center of the United States population still remained in Indiana. -
Period: to
1920-1929
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League of Nations
The League of Nations is established with the ratification of the Treaty of Versailles, ending the hostilities of the first World War. Nine days later the United States Senate votes against joining the League. -
A national quota
A national quota system on the amount of incoming immigrants is established by the United States Congress in the Emergency Quota Act, curbing legal immigration. -
Yankee stadium
Construction begins on Yankee Stadium in New York City, often dubbed the House that Ruth Built. -
Time magazine
Time Magazine is published for the first time. -
Warner brothers
Warner Brothers Pictures is incorporated. -
North Pole and back flight
The first flight to the North Pole and back occurs when pilot Floyd Bennett, with Richard Evelyn Byrd as his navigator, guided a three-engine monoplane. They were awarded the Medal of Honor for their achievement. -
Civil war in China
The civil war in China prompts one thousand United States marines to land in order to protect property of United States interests. -
Mount Rushmore construction begins
Work on the gigantic sculpture at Mount Rushmore begins. Sculptor Gutzon Borglum would complete the task of chiseling the busts of four presidents; George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt, fourteen years later. -
Hoover Dam construction begins
The United States Congress approves the construction of Boulder, later named Hoover Dam.
