History 275 Travel 89 Description and travel 67 World War, 1939-1945 61 Social life and customs 59 Diaries 45 Politics and government 40 more ... Social conditions 38 Manners and customs 36 Women 32 Soldiers 31 Campaigns 29 Discovery and exploration 26 History and criticism 22 Holocaust, Jewish (1939-1945) 22 World War, 1914-1918 22 Frontier and pioneer life 21 Military campaigns 20 Explorers 19 Jews 19 Philosophers 18 Armed Forces 17 Discoveries in geography 17 Intellectual life 17 Generals 16 Regimental histories 15 African Americans 14 Authors, American 14 Friends and associates 13 Indians of North America 13 less ...