Essays
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| Nielsen, Arthur | December 1989 | |
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ERA 8: The Great Depression and World War II (1929–1945)
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Mccormick, John | December 1989 |
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| Nielsen, Arthur | December 1989 | |
| Nielsen, Arthur | December 1989 | |
| Nielsen, Arthur | December 1989 | |
| Nielsen, Arthur | December 1989 | |
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| Nielsen, Arthur | December 1989 | |
ERA 8: The Great Depression and World War II (1929–1945)
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Ward, Geoffrey | December 1989 |
ERA 5: Civil War and Reconstruction (1850-1877)
|
Gordon, John | December 1989 |
ERA 10: Contemporary United States (1968 to the present)
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Weisberger, Bernard | December 1989 |
| Barol, Bill | December 1989 | |
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