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Places
- Antarctica -- Discovery and exploration1
- Arctic regions -- Discovery and exploration1
- China -- History -- Cultural Revolution, 1966-1976 -- Archives1
- Europe -- Intellectual life1
- Germany -- History -- 20th century1
- Lhasa (China) -- History -- 20th century -- Archives1
- Massachusetts -- Politics and government -- 1865-19501
- New York (N.Y.) -- Politics and government -- 1951-1
- Northern Ireland1
- Polar regions -- Discovery and exploration1
- United States -- History1
- United States -- History -- 20th century1
- United States -- Politics and government -- 1945-19531
- United States -- Politics and government -- 20th century1