History 42 Indians of South America 17 Politics and government 12 Antiquities 7 Economic conditions 7 Incas 7 Law 7 more ... Constitutional law 5 Law and legislation 5 Social conditions 5 Social life and customs 5 Civil law 4 Constitutional courts 4 Criminal law 4 Description and travel 4 Early accounts to 1600 4 Social aspects 4 Ethnic identity 3 History and criticism 3 Legends 3 Presidents 3 Arbitration and award 2 Civil rights 2 Civilization 2 Decentralization in government 2 Discovery and exploration 2 Economic development 2 Economic policy 2 Excavations (Archaeology) 2 Historians 2 less ...