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 — 178
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![Archaeology and Anthropology]()
Archaeology and Anthropology — 42
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![Architecture and Historic Preservation]()
Architecture and Historic Preservation — 210
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![Arts]()
Arts — 265
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![Black History]()
Black History — 80
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![Education]()
Education — 275
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![Environment and Natural Resources]()
Environment and Natural Resources — 457
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![Exploration and Explorers]()
Exploration and Explorers — 61
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![Folklife]()
Folklife — 13
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![Geography and Places]()
Geography and Places — 388
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![Geology]()
Geology — 32
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![Government, Law, and Politics]()
Government, Law, and Politics — 733
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![Labor]()
Labor — 59
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![LGBTQ]()
LGBTQ — 23
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![Literature]()
Literature — 149
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![Native Americans]()
Native Americans — 216
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![Oregon Trail and Resettlement]()
Oregon Trail and Resettlement — 135
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![Oregoniana—you know it when you see it.]()
Oregoniana—you know it when you see it. — 77
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![Race, Ethnicity, and Nationality]()
Race, Ethnicity, and Nationality — 372
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![Religion]()
Religion — 130
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![Science, Medicine, and Technology]()
Science, Medicine, and Technology — 201
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![Sports and Recreation]()
Sports and Recreation — 193
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![Trade, Business, Industry, and the Economy]()
Trade, Business, Industry, and the Economy — 453
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![Transportation and Communication]()
Transportation and Communication — 293
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![Women]()
Women — 247
