Themes
Encyclopedia entries have been gathered into Themes, like with like, to guide readers to their interests (or school assignments). Most entries belong to two or more Themes, a reflection of history's refusal to be single-minded.
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![Agriculture and Ranching]()
Agriculture and Ranching — 168
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![Archaeology and Anthropology]()
Archaeology and Anthropology — 40
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![Architecture and Historic Preservation]()
Architecture and Historic Preservation — 202
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![Arts]()
Arts — 252
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![Education]()
Education — 253
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![Environment and Natural Resources]()
Environment and Natural Resources — 434
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![Exploration and Explorers]()
Exploration and Explorers — 59
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![Folklife]()
Folklife — 13
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![Geography and Places]()
Geography and Places — 374
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![Government, Law, and Politics]()
Government, Law, and Politics — 687
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![Labor]()
Labor — 56
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![Literature]()
Literature — 135
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![Native Americans]()
Native Americans — 200
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![Oregon Trail and Resettlement]()
Oregon Trail and Resettlement — 118
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![Oregoniana—you know it when you see it.]()
Oregoniana—you know it when you see it. — 69
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![Race, Ethnicity, and Nationality]()
Race, Ethnicity, and Nationality — 352
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![Religion]()
Religion — 121
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![Science, Medicine, and Technology]()
Science, Medicine, and Technology — 185
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![Sports and Recreation]()
Sports and Recreation — 188
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![Trade, Business, Industry, and the Economy]()
Trade, Business, Industry, and the Economy — 436
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![Transportation and Communication]()
Transportation and Communication — 283
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![Women]()
Women — 233
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![Geology]()
Geology — 27
