Parentless Concepts
- Antonio de Herrera y Tordesillas, La Historia General del Mundo
- Antonio de San Roman
- Antonio de San Roman, Historia general de la India Oriental
- Antonius ab Halewyn
- Antwerp
- ape
- Apollonia
- Apollonia (Spitlmeisterin)
- Apuleius
- working paper
- Archbishop of Damascus
- Archevolti, Samuel
- Aristarchus of Samo
- Aristotle
- Arminius
- Armuth, Eucharius
- Arnhem
- Arnobius
- Arnoldus Hardwicenius
- arrangement (music)
- Arras
- Arrian of Nicomedia
- asf
- Asia