History 273 Japanese 121 Agricultural colonies 44 Economic conditions 31 World War, 1939-1945 31 Emigration and immigration 29 Foreign relations 23 more ... Sino-Japanese War, 1937-1945 22 Description and travel 20 History and criticism 18 Manshū-Rekishi 18 Social life and customs 17 International relations 16 Railroads 16 Travel 16 Colonies 15 Histoire 15 Koreans 15 Social conditions 15 Government policy 14 Manners and customs 14 Japanese literature 13 Chinese literature 12 Economic history 12 Sources 12 Antiquities 11 Economic policy 11 Mukden Incident, China, 1931 10 Politics and government 10 Agriculture 9 less ...