Group identity Social aspects 12 Caste 11 Identity (Psychology) 8 Social classes 7 Ethnicity 6 History 6 Postmodernism 6 Social stratification 6 Identity (Philosophical concept) 5 Identity politics 5 Intercultural communication 5 Nationalism 5 Social change 5 Civilization, Ancient 4 Communication 4 Culture 4 Ethnic relations 4 Intergroup relations 4 Social movements 4 Social structure 4 Sociology 4 Violence 4 Boundaries 3 Civilization 3 Collective memory 3 Consumers 3 Emigration and immigration 3 Mass media 3 Memory 3