History 55 Mexican Americans 13 Civil rights 9 Race relations 9 Authors, American 8 Social conditions 8 Social life and customs 7 African Americans 6 Ethnic relations 6 Politics and government 6 History and criticism 5 Intellectual life 5 Discrimination in sports 4 Emigration and immigration 4 In literature 4 Influence 4 Economic conditions 3 Folklorists 3 Football 3 Homes and haunts 3 Mexican American authors 3 Petroleum industry and trade 3 Race discrimination 3 African American football players 2 Art, American 2 Businessmen 2 Civil rights movements 2 Community development 2 Country music 2 Country musicians 2