Philosophy 10 History of the Americas 9 Diaries, letters & journals 6 Ethics & moral philosophy 6 Western philosophy: c 1600 to c 1900 6 Diaries, letters and journals 4 Ethics and moral philosophy 4 Philosophical traditions and schools of thought 4 Revolutions, uprisings, rebellions 4 Humanities 3 Regional studies 3 European history 2 History 2 Literary theory 2 Political structures: democracy 2 Social and cultural history 2 Biography and non-fiction prose 1 Communication studies 1 Constitutional & administrative law 1 Early modern warfare (including gunpowder warfare) 1 History of religion 1 History: specific events & topics 1 Indigenous peoples 1 Language: reference & general 1 Literature: history & criticism 1 Literature: history and criticism 1 Local history 1 Military history 1 Modern history to 20th century: c 1700 to c 1900 1 Political science & theory 1