Looking at 1920: A Hundred Years Later

The American Civil Liberties Union was founded on January 20.

Source:  https://www.underconsideration.com/brandnew/archives/new_logo_and_identity_for_aclu_by_open_cocollective_and_frere-jones_type.php

On Febuary 13, the National Negro Baseball League is organized.

Source: https://www.detroitnews.com/picture-gallery/news/local/michigan-history/2020/02/04/remembering-negro-leagues-baseball/4525464002/ 

February 14: The League of Women Voters forms in Chicago.

Source:  https://www.lwvabcwi.org/history 

Babe Ruth hits his first home run for the Yankees on May 1.

Source:  https://fanbuzz.com/mlb/babe-ruth-facts/ 

On May 2, the first game of the National Negro Baseball League is played in Indianapolis.

Source:  https://www.history.com/topics/sports/negro-league-baseball 

Woodrow Wilson makes the Communist Labor Party illegal.

Source:  https://en.wikipedia.org/wiki/Communist_Labor_Party_of_America

May 16: Joan of Arc is canonized as a saint.

Source:  https://www.history.com/topics/middle-ages/saint-joan-of-arc   

June 13:  The United States Post Office announces that parents cannot send their children in the mail after a number of instances of them doing so.  

Source:  https://www.onthisday.com/events/date/1920

On August 18, after receiving a letter from his mother telling him to "be a good boy" and ratify the 19th amendment, 22-year old Tennessee Representative Harry T. Burn becomes the deciding vote in the ratification of the 19th amendment giving women the right to vote.

Source:  https://constitutioncenter.org/blog/the-man-and-his-mom-who-gave-women-the-vote/ 

August 20: The American Professional Football Association forms, becoming the NFL a few years later.

Source:  http://www.apflfootball.com/ 

Ethelda Bleibtrey becomes the first woman to win the Olympics on August 25.

Source:  https://www.revolvy.com/page/Ethelda-Bleibtrey 

On September 16, a horse-drawn wagon explodes on Wall Street, killing 38 and injuring 143 people.

Source:  https://en.wikipedia.org/wiki/Wall_Street_bombing#/media/File:Wallstreetbmb.jpg 

Republican Warren G. Harding wins the presidential election, beating Democrat James M. Cox on November 2.

Source:  https://www.pbs.org/wgbh/americanexperience/features/presidents-harding/ 

November 11: Mussolini's squad begins terror, killing 11 in Bologna, Italy.

Source:  https://allthatsinteresting.com/benito-mussolini-death 

On November 27, the first American superhero movie, The Mask of Zorro, starring Douglas Fairbanks, is shown in New York City

Source:  https://www.imdb.com/title/tt0011439/