History Indians of North America 180 Colonies 62 Discovery and exploration 46 Emigration and immigration 45 Ethnic relations 45 Indians, Treatment of 44 more ... Social aspects 44 Social conditions 44 Discoveries in geography 35 Social life and customs 35 Race relations 34 Colonization 33 Histoire 30 Missions 30 History and criticism 29 Government relations 26 Frontier and pioneer life 25 Historiography 22 Antiquities 21 Ethnic identity 21 Politics and government 21 Civilization 20 First contact with other peoples 19 Economic conditions 18 Political aspects 18 French 17 American literature 16 Description and travel 16 Religion 16 less ...