The United States declares war on Germany, entering World War I.
United States men between the ages of 21 and 30 are required to register for possible military service.
The Eighteenth Amendment passed by U. S. Congress prohibits the manufacture, sale or transportation of alcoholic beverages.
The tank is developed and introduced in World War I.
Bobbed hair is popular in the United States.
1918
The O. Henry Awards are created to honor short stories.
The American Civil Liberties Union is founded.
Airmail service begins between Washington, D.C. and New York for 24 cents.
Czar Nicholas II and family are executed by order of Lenin.
The Sedition Act of 1918 criminalizes saying, writing, printing, or publishing anything disloyal or profane about the American military action in World War I.
Ernest Hemingway is wounded while working as an ambulance driver in WWI.
World War I ends in November leaving more than 10 million dead.
Spanish Influenza kills 22 million people worldwide.
TheNegro World begins publishing in Harlem.
Women’s Suffrage is granted in Britain.
1919
The American Telephone and Telegraph Company introduces dial telephones.
Dance marathons become popular in the United States.
Hitler is jailed after a failed coup.
French and Belgian forces occupy Ruhr.
Talking movies are invented.
Teapot Dome scandal hearings begin in Washington D.C.
Time magazine is founded.
1924
Calvin Coolidge is elected President of the U.S.
Gorge Jean Nathan and H.L. Mencken found the American Mercury magazine.
The first Winter Olympics are held in Chamonix, France.
Greek King George II is disposed and Greece becomes a Republic.
Miriam Ferguson of Texas becomes the first woman elected Governor in the United States.
1925
The New Yorker begins publication.
Tennessee passes a bill to ban the teaching of evolution in schools. Later this year, John Scopes is indicted for teaching Darwin’s theory of evolution and fined $100.
A show in Paris calls attention to Art Deco, a trend toward simplified lines and solid forms in the visual arts.
Women in the United States wear the dropped-waist “flapper dress.”
1926
The first transatlantic radiotelephone conversation between New York and London takes place.
A Scottish inventor introduces the first television.
Fritz Lang’s film Metropolis is shown in Berlin.
The magazine Amazing Storiesbegins publishing science fiction stories.
Marianne Moore becomes editor of Dial.
1927
The U.S. Supreme Court strikes down a Texas law excluding Blacks from voting in Democratic Primaries.
Sacco and Vanzetti are put to death despite massive protests by Edna St. Vincent Millay, Dorothy Parker, Albert Einstein, Jane Addams and H.G. Wells.
Babe Ruth hits 60 home runs for the New York Yankees
Lindbergh flies soloacross the Atlantic in The Spirit of St. Louis.
The German economic system crashes on a day known as “Black Friday”
1928
In Schenectady, New York, the first American home acquires a TV set.