History 18 World War, 1939-1945 7 Genocide 4 Government policy 3 Political aspects 3 Politics and government 3 Emigration and immigration 2 more ... Ethnic relations 2 Foreign relations 2 History and criticism 2 Holocaust, Jewish (1939-1945) 2 Jews 2 Refugees 2 Acquisitions (Libraries) 1 Administrative and political divisions 1 American fiction 1 Apparitions and miracles 1 Arabs 1 Assimilation (Sociology) 1 Autonomy and independence movements 1 Books 1 Boundaries 1 Business enterprises 1 Causes 1 Censorship 1 Christianity 1 Civil-military relations 1 Civilian relief 1 Collective memory 1 Confiscations and contributions 1 less ...