1919
Eighteenth Amendment (Prohibition) is ratified

Congress passes Volstead Act

1920
Red Scare begins

Nineteenth Amendment is ratified

Congress Passes the Esch-Cummins Transportation Act

Warren G. Harding is elected president

Sinclair Lewis publishes Main Street

1921
Sacco-Vanzetti trial

Congress passes Emergency Quota Act

1922
Five-Power, Nine-Power, and Four-Power treaties signed

Congress passes Fordney-McCumber Tariff

1923
Teapot Dome scandal

Adkins v. Children’s Hospital

President Harding dies in office; Calvin Coolidge becomes president

1924
Calvin Coolidge is elected president

Dawes Plan

Congress passes Immigration Act of 1924

1925
Scopes Monkey Trial

F. Scott Fitzgerald publishes The Great Gatsby

1926
Coolidge sends American forces to Nicaragua

Ernest Hemingway publishes The Sun Also Rises

1927
Charles Lindbergh becomes first pilot to fly solo across Atlantic

The Jazz Singer becomes first “talkie” motion picture

1928
Kellogg-Briand Pact is signed

Herbert Hoover is elected president

1929
William Faulkner publishes The Sound and the Fury

Stock market crashes

1932
Reconstruction Finance Corporation is created

Congress passes Norris–La Guardia Anti-Injunction Act

“Bonus Army” camps out in Washington, D.C.

Franklin D. Roosevelt is elected president

1933
First Hundred Days: Congress and Roosevelt establish many New Deal agencies, including CCC, FERA, CWA, AAA, TVA, and PWA

Twenty-First Amendment is ratified

1934
Congress creates Securities and Exchange Commission (SEC)

Indian Reorganization Act (IRA)

1935
Works Progress Administration (WPA)

National Labor Relations Act (Wagner Act)Social Security Act

1936
Soil Conservation and Domestic Allotment Act

Roosevelt is reelected

Butler v. United States ruling

1937
United States Housing Authority (USHA)

Roosevelt initiates court-packing scheme

Roosevelt Recession begins

1937 “Roosevelt Recession” begins

1938
Second Agricultural Adjustment Act

Fair Labor Standards Act

1939
Congress passes the Hatch Act

1940
Roosevelt reelected to unprecedented third term