History 18 Explorers 12 Discovery and exploration 9 Spanish 9 Mexican Americans 7 Politics and government 7 Description and travel 5 Máis ... Indians of North America 5 Civil rights 4 Biografía 3 Civil rights workers 3 Ethnic relations 3 Historiography 3 Lawyers 3 Political activists 3 Political science 3 Women 3 Blacks 2 Criticism and interpretation 2 Early accounts to 1600 2 Ethnic identity 2 Feminists 2 Hispanic Americans 2 Historia 2 Historians 2 Jurista 2 Mexican American women 2 Philosophy 2 Presidents 2 Revolutionaries 2 menos ...