Historiography Memory History 32 Social aspects 29 Political aspects 15 Holocaust, Jewish (1939-1945) 13 Collective memory 8 Politics and government 7 Influence 5 Race relations 5 Moral and ethical aspects 4 Philosophy 4 Psychological aspects 4 Slavery 4 Social conditions 4 Social life and customs 4 African Americans 3 Government, Resistance to 3 Intellectual life 3 Jews 3 National characteristics, American 3 National socialism 3 Public opinion 3 Reconstruction (U.S. history, 1865-1877) 3 African American leadership 2 Attitudes 2 Blacks 2 Dictatorship 2 Fugitive slaves 2 Group identity 2