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  1. Unit 7: Period 7: 1890-1945 - Khan Academy

    Period 7: 1890-1945: Unit test About this unit By the early 20th century, the US had become a global power, actively engaging in foreign policy and imperialism.

  2. Khan Academy

    If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and …

  3. Khan Academy

    Period 7: 1890-1945. Unit 8. Period 8: 1945-1980. Unit 9. Period 9: 1980-present. Unit 10. AP®︎ U.S. History exam skills and strategies. Unit 11. AP®︎ U.S. History standards mappings. …

  4. AP®︎/College US History - Khan Academy

    Learn AP US History: key concepts, themes, and periods from the pre-contact era right up to the present, all designed for learners preparing for the AP US History exam. Expand your …

  5. Unit 1: Period 1: 1491-1607 - Khan Academy

    Period 7: 1890-1945. Unit 8. Period 8: 1945-1980. Unit 9. Period 9: 1980-present. Unit 10. AP®︎ U.S. History exam skills and strategies. Unit 11. AP®︎ U.S. History standards mappings. …

  6. Khan Academy

    A house divided against itself cannot stand. Examine the ideas and events of the mid-19th century that led to the United States' division over slavery, and how the Civil War of the 1860s ripped …

  7. The postwar era (1945-1980) | US history | Khan Academy

    Rise to world power (1890-1945) Unit 8. The postwar era (1945-1980) Unit 9. The modern era (1980-present) Unit 10. Surveys of history. Unit 11. Primary documents. Course challenge. …

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