History 33 Frontier and pioneer life 18 Histoire 13 Overland journeys to the Pacific 11 Sources 10 Description and travel 7 Pioneers 6 more ... Discovery and exploration 5 Women 5 Indians of North America 4 Social life and customs 4 Travel 4 Voyages par terre jusqu'au Pacifique 4 Descriptions et voyages 3 Territorial expansion 3 Weststaaten 3 Women pioneers 3 American literature 2 Colonial question 2 Correspondence 2 Discoveries in geography 2 Expansion territoriale 2 Frontier 2 Migration, Internal 2 Overland journeys to the Pacific (U.S.) 2 Popular culture 2 Voyages to the Pacific coast 2 19th century 1 Alltagskultur 1 American 1 less ...