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A period of expansion, industrialization, immigration, and urbanization with significant effects on Native Americans, workers, immigrants, and the rise of big business in the late 19th century.
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During the early 20th century the U.S. entered a new historical era: an Age of Expansionism beyond our natural borders as the country moved from isolationism. U.S. imperialism led to involvement in the Spanish- American War, changing policies in Latin America and Asia and eventually yo World War 1. At home, reformers made efforts to correct economic and social abuses of the Gilded Age.
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World War I, often abbreviated as WWI, was a global conflict fought between two coalitions, the Allied Powers and the Central Powers. Fighting took place throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia.
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This was also an era of significant prosperity and social changes as Americans became more isolationist and responded to significant change in social norms, consumerism, technological advances and artistic achievement.
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Beginning with the Stock Market Crash in 1929, this era is marked by severe depression and the increasing role of the Federal government to improve the economy.
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The rise of totalitarian governments in Europe and East Asia led to World War 2 and involvement of the United States in that conflict.
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World War II or the Second World War, often abbreviated as WWII or WW2, was a global conflict that lasted from 1939 to 1945. The vast majority of the world's countries, including all of the great powers, fought as part of two opposing military alliances.
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The Cold War was a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc
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This era highlights the issues of emerging rights for minorities and the leaders and critical events of the modern 20th century civil rights movement.
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An era of change as the U.S. experienced the end of the Cold War, new conflicts in the Middle East, the impeachment of a President and a controversial election to begin a new century.
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Early in this century America dealt with a new threat of terrorism at home with the attacks on the World Trade Center on 9/11 and a decade of the "War Against Terror". This era also marked the election of the first African- American President of the United States in 2008.
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The September 11 attacks, commonly known as 9/11, were four coordinated Islamist suicide terrorist attacks carried out by al-Qaeda against the United States in 2001.