History 51 Description and travel 27 Political science 18 Philosophy 15 Criticism and interpretation 10 Travel 10 Spanish 9 more ... Christianity 8 Discovery and exploration 8 Historia 8 Spanish language 8 Filosofía 7 Grammar 7 Indians of Mexico 7 Indians of South America 7 Military art and science 7 Natural history 7 Law 6 Voyages and travels 6 Astronomy 5 Christian life 5 Conduct of life 5 History and criticism 5 Religión 5 Spiritual life 5 Astronomía 4 Biography 4 Catholic Church 4 Church history 4 Colonies 4 less ...