- Asher Yeshaʻy., a.b.d. ḳ. Ropshits1
- Ashkenazi, Ẓevi Hirsch ben Jacob, -17181
- Asia1
- Astronomical instruments1
- Astronomy, Medieval1
- Auctions1
- Augustine, of Hippo, Saint, 354-4301
- Aurispa, Giovanni, approximately 1376-14591
- Austria--Vienna1
- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Awḍaḥ al-masālik ilá Alfīyat Ibn Mālik (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Ayyubids1
- Babur, Emperor of Hindustan, 1483-15301
- Bacán, Hernando de1
- Baglioni, Niccolò1
- Baldini, Antonio1
- Baldo, Antonio di1
- Baldo, Vestro di1
- Balducci, Domenico1
- Balducci, Nonnina1