Encyclopedias, Almanacs, Transcripts, and Maps
- Abolition Movement
- Abolition of Serfdom
- Abolition of Slavery in the North
- Abolition of Slavery: British Empire
- Abolition of Slavery: United States
- Abolition Societies
- Aborigines' Rights Protection Society
- Abortion
- Abortion Policy
- Aboville, François Marie, Comte D'
- Abrabanel, Isaac
- Abraham Adolf Fraenkel
- Abraham and Mary Putnam Jacobi
- Abraham Demoivre
- Abraham Issac Kuk
- Abraham Johannes Muste
- Abram Lincoln Harris Jr
- Abu al-Hasan Ali al-Ashari
- Abu al-Qasim ibn Muhammad al Junayd
- Abu Jafar ibn Muhammad al-Mansur