History Frontier and pioneer life 418 Histoire 274 Indians of North America 216 Description and travel 139 Wars 115 Territorial expansion 92 more ... Discovery and exploration 80 Overland journeys to the Pacific 71 Pioneers 70 Travel 59 Social life and customs 56 Weststaaten 54 Women 54 Social conditions 53 History and criticism 44 Descriptions et voyages 39 Fur trade 39 Politics and government 38 Race relations 37 In literature 35 African Americans 34 Ethnic relations 34 Historiography 34 Women pioneers 34 Sources 32 Railroads 31 Cowboys 30 Geschichte 30 Military life 30 less ...