Significant Years 1
US Expansionism
Reformers
Cold War
Supreme Court Cases
100

1898

Spanish-American War

100

This short and easy victory marked the emergence of the United States as a major world power

Spanish-American War

100

This muckraker exposed the meatpacking industry with his novel The Jungle, which resulted in legislation like the Pure Food and Drug Act

Upton Sinclair

100

This economic recovery program provided financial assistance to European nations after World War II

Marshall Plan

100

1896 - upheld the constitutionality of the "separate but equal" doctrine behind segregationist policies in the South 

Plessy v. Ferguson

200

1914-1918

World War I

200

This man was a leading imperialist who argued that national greatness depended on having a strong navy; he also advocated for colonies and a canal in Central America

Alfred Thayer Mahan

200

This woman was a major leader in the women's suffrage movement

Susan B. Anthony

200

This was an Allied campaign to fly in food, medicine, and supplies to the people of West Berlin after the city was blockaded by the Soviets

Berlin Airlift

200

1954 - eliminated "separate but equal" in public education and ordered the desegregation of schools

Brown v. Board of Education

300

1929

Start of the Great Depression (stock market crash)

300

This man commanded the Rough Riders in Cuba, was known for his "big stick" diplomacy, and justified intervening in Latin America by adding his own Corollary to the Monroe Doctrine

Theodore Roosevelt

300

This woman was a social worker who established a settlement house, called the Hull House, in Chicago to help immigrants and the poor

Jane Addams

300

This was a military alliance among the US and Western European nations in 1949 designed to stop Soviet aggressive expansion

North Atlantic Treaty Organization (NATO)

300

1954 - ruled that Mexican Americans were entitled to the same constitutional protections under the 14th Amendment as were other minorities

Hernandez v. Texas

400

1939-1945

World War II

400

Along with the de Lome letter and yellow journalism, this event was a major cause of the outbreak of war between the United States and Spain

Explosion of the USS Maine

400

This woman was an activist who campaigned against the regular lynching of African Americans

Ida B. Wells

400

The purpose of this congressional committee was to investigate and root out suspected Communists in American institutions 

House Un-American Activities Committee (HUAC)

400

1969 - ruled that students wearing armbands to protest the Vietnam War was protected by the First Amendment freedom of speech

Tinker v. Des Moines

500

1957

Launch of Sputnik (beginning of space race)

500

This man worked towards the annexation of Hawaii as a US state, and served as its governor

Sanford B. Dole

500

This man was a founder of the NAACP and urged blacks to actively campaign for equal rights

W.E.B. DuBois

500

This term is named for a Wisconsin senator who was notorious for his anti-Communist crusade in which he recklessly accused people of treason, often without evidence

McCarthyism

500

1972 - ruled that state law could not force Amish children to attend public school since it violated the First Amendment freedom of religion

Wisconsin v. Yoder