Antiquities 12
Description and travel 12
History 10
Excavations (Archaeology) 7
Civilization 6
Paleolithic period 4
Prehistoric peoples 3
Tools, Prehistoric 2
Travel 2
Agriculture, Prehistoric 1
Archaeological surveying 1
Chert 1
Chert implements 1
Discovery and exploration 1
Education 1
Egyptian language 1
Ethnology 1
Etymology 1
Food 1
Foreign relations 1
Geography 1
Hunting and gathering societies 1
Inscriptions, Egyptian 1
Irrigation water 1
Material culture 1
Novelists, English 1
Physical geography 1
Political aspects 1
Politics and government 1
Quarries and quarrying, Prehistoric 1
Refugees 1
Relations 1
Steamboats 1
Water resources development 1
Water-supply 1
Women travelers 1