Encyclopedias, Almanacs, Transcripts, and Maps
- Akan Religion
- Akhenaton
- Akitu
- Aksakov, Ivan
- Aksumite Religion
- Al-Azhar
- Alaska Highway
- Alaska National Interest Lands Conservation Act (1980)
- Alaskan Boundary Dispute
- Ālaya-Vijñāna
- Albatrosses (Diomedeidae)
- Albertus Magnus
- Albo, Yosef
- Albuliformes (Bonefishes and Relatives)
- Alchemy: An Overview
- Alchemy: Chinese Alchemy
- Alchemy: Hellenistic and Medieval Alchemy
- Alchemy: Indian Alchemy
- Alchemy: Islamic Alchemy
- Alchemy: Renaissance Alchemy