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Subject
- History22
- Description and travel10
- Travel9
- Mountaineering8
- Environmental protection7
- Social aspects6
- Environmental aspects5
- Environmental policy5
- Global environmental change5
- Globalization5
- Archaeoastronomy4
- Ethnic relations4
- Ethnicity4
- Mountaineers4
- Nationalism4
- Rock climbing4
- Social conditions4
- Social life and customs4
- Astronomy3
- Discovery and exploration3