Period 7

Spanish-American War

Conflict in 1898 between the U.S. and Spain leading to U.S. acquisition of Puerto Rico, Guam, and the Philippines.

Platt Amendment

Legislation that allowed U.S. intervention in Cuba and established a protectorate over the island.

Open Door Policy

U.S. policy asserting equal trading rights for all nations in China.

Roosevelt Corollary

Extension of the Monroe Doctrine, justifying U.S. intervention in Latin America.

Muckrakers

Journalists who exposed social issues and corporate malpractices during the Progressive Era.

19th Amendment

Constitutional amendment granting women the right to vote in 1920.

Selective Service Act

Law passed in 1917 to facilitate the drafting of soldiers into the U.S. Army during World War I.

Sedition Act (1918)

Legislation that restricted free speech during World War I.

Great Migration

Mass movement of African Americans from the rural South to northern cities for factory jobs.

New Deal

Franklin D. Roosevelt's series of programs aimed at economic recovery during the Great Depression.

Social Security Act (1935)

Legislation establishing a system of old-age benefits and unemployment insurance.

Korematsu v. U.S.

Supreme Court case that upheld the internment of Japanese Americans during World War II.

Manhattan Project

Secret U.S. project that developed the atomic bomb during World War II.

Lend-Lease Act

U.S. program supplying Allied nations with war material prior to and during World War II.

Prohibition

Nationwide ban on the sale, production, and transportation of alcohol from 1920 to 1933.

Scopes Trial

Legal case in 1925 challenging the teaching of evolution in schools, representing a clash between modernism and traditionalism.

The Great Depression

Severe worldwide economic crisis that started in the U.S. with the stock market crash in 1929.