History Civilization 4 World War, 1939-1945 4 Foreign relations 3 Social aspects 3 Social conditions 3 History and criticism 2 más ... Human body 2 Missions 2 Political aspects 2 Politics and government 2 Relations 2 Religious aspects 2 Social life and customs 2 Zen Buddhism 2 American influences 1 Architecture 1 Architecture, Sukiya 1 Art and society 1 Art and state 1 Assimilation (Sociology) 1 Atrocities 1 Biological Warfare 1 Biological warfare 1 Buddhism and state 1 Chashitsu (Japanese tearooms) 1 Christianity 1 Colonies 1 Comic books, strips, etc 1 Conflict management 1 menos ...