The Early 1920s

Warren G. Harding is inaugurated as the 29th president.

Mar 4, 1921

Harding signs resolution declaring peace with Austria and Germany.

Jul 2, 1921

President Harding dies suddenly.

Aug 2, 1923

He is succeeded by his vice president, Calvin Coolidge. Teapot Dome scandal breaks, as Senate launches an investigation into improper leasing of naval oil reserves during Harding administration

Oct 1, 1923

Tennessee passes a law against the teaching of evolution in public schools.

Mar 23, 1925

The Star-Spangled Banner is adopted as the national anthem

Mar 3, 1931

Hattie Wyatt Caraway of Arkansas is the first woman elected to the U.S. Senate, to fill a vacancy caused by the death of her husband

Jan 12, 1932

Amelia Earhart completes first solo nonstop transatlantic flight by a woman

May 21, 1932

. Franklin Roosevelt is inaugurated as the 32nd president

Mar 4, 1933

F. Roosevelt's second inauguration

Jan 20, 1937

U.S. declares its neutrality in European conflict

Sep 5, 1939

Roosevelt's third inauguration

Jan 20, 1941

Japan attacks Hawaii, Guam, and the Philippines

Dec 7, 1941

U.S. declares war on Japan

Dec 8, 1941

.Germany and Italy declare war on the United States; U.S. reciprocates by declaring war on both countries

Dec 11, 1941

Allies invade North Africa

Oct 1, 1942

North Korean communists invade South Korea

Jun 25, 1950

President Truman, without the approval of Congress, commits American troops to battle

Jun 27, 1950

President Truman removes Gen. Douglas MacArthur as head of U.S. Far East Command

Apr 11, 1951

Vietnam War

May 1, 1951

First U.S. combat troops arrive in South Vietnam

Mar 8, 1952