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Subject
- Railroads22
- Real property13
- Landowners6
- Administrative and political divisions3
- Fire protection districts3
- Cities and towns2
- Mines and mineral resources2
- Navigation2
- Roads2
- Surveys2
- Transportation2
- Waterways2
- Barrier Forts, Battle of the, China, 18561
- Civilization1
- Colonization1
- Description and travel1
- Discovery and exploration1
- Earthquakes1
- Emigration and immigration1
- Explorations and surveys1
