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the theory that individuals, groups, and peoples are subject to the same Darwinian laws of natural selection as plants and animals. Now largely discredited, social Darwinism was advocated by Herbert Spencer and others in the late 19th and early 20th centuries and was used to justify political conservatism, imperialism, and racism and to discourage intervention and reform. -
The Lost Generation is best known as being the cohort which primarily fought in World War I. More than 70 million people were mobilised during the First World War, around 8.5 million of whom were killed and 21 million wounded in the conflict. -
The Harlem Renaissance was a cultural revival of African American music, dance, art, fashion, literature, theater, politics and scholarship centered in Harlem, Manhattan -
The term 'Tin Pan Alley' refers to the physical location of the New York City-centered music publishers and songwriters who dominated the popular music of the United States in the late 19th century and early 20th century. -
Convicted of accepting bribes from the oil companies, Fall became the first presidential cabinet member to go to prison; no one was convicted of paying the bribes. Before the Watergate scandal, Teapot Dome was regarded as the "greatest and most sensational scandal in the history of American politics". -
Congress enacted the Indian Citizenship Act, which granted citizenship to all Native Americans born in the U.S. -
The Immigration Act of 1924 limited the number of immigrants allowed entry into the United States through a national origins quota -
The Mexican Repatriation was the repatriation and deportation of Mexicans and Mexican-Americans to Mexico from the United States during the Great Depression -
The Dust Bowl was the name given to the drought-stricken Southern Plains region of the United States, which suffered severe dust storms during a dry period in the 1930s. As high winds and choking dust swept the region from Texas to Nebraska, people and livestock were killed and crops failed across the entire region -
The Federal Deposit Insurance Corporation is one of two agencies that supply deposit insurance -
The Civilian Conservation Corps (CCC) was a voluntary government work relief program that ran from 1933 to 1942 in the United States for unemployed, unmarried men ages 18–25 and eventually expanded to ages 17–28 -
The Tennessee Valley Authority is a federally-owned electric utility corporation in the United States. -
The U.S. Securities and Exchange Commission is an independent agency of the United States federal government, created in the aftermath of the Wall Street Crash of 1929. -
The United States Social Security Administration is an independent agency of the U.S. federal government that administers Social Security -
The Works Progress Administration (WPA) was an ambitious employment and infrastructure program created by President Roosevelt in 1935, -
Henry Ford was an American industrialist, business magnate, founder of the Ford Motor Company, and chief developer of the assembly line technique of mass production. -
Charles Augustus Lindbergh was an American aviator, military officer, author, inventor, and activist. At the age of 25, he went from obscurity as a U.S. Air Mail pilot to instantaneous world fame by winning the Orteig Prize for making the first nonstop fligh