Subject
Population
History
14
Fertility, Human
4
Colonies
3
Women
3
Appointment, call, and election
2
Bishops
2
Catholics
2
Economic conditions
2
Lutherans
2
Papacy
2
Religion
2
Schism, The Great Western, 1378-1417
2
Canals
1
Cities and towns
1
Commerce
1
Demography
1
Economic aspects
1
Economics
1
Emigration and immigration
1
Ethnology
1
Families
1
Famines
1
Feudalism
1
Fur trade
1
Immigrants
1
Indians of North America
1
Land tenure
1
Malthusianism
1
Marriage
1
Migration, Internal
1
Peasants
1
Politics and government
1
Population policy
1
Rivers
1
Rural conditions
1
Seven Years' War, 1756-1763
1
Social conditions
1
Statistics
1
Wages
1
World War, 1914-1918
1