- Augsburg Confession1
- Aurispa, Giovanni, approximately 1376-14591
- Austria--Lambach (Upper Austria)1
- Austria--Vienna1
- Autographs1
- Averroës, 1126-1198. Talkhīs kitāb al-ʻIbārah1
- Averroës, 1126-1198. Talkhīṣ kitāb al-maqūlāt1
- Averroës, 1126-1198. Talkhīṣ madkhal Furfūriyūs1
- Balances (Weighing instruments)1
- Banks and banking1
- Baptism--Catholic Church1
- Bardi, Giovanni de', conte di Vernio, 1534-16121
- Bartolomeo, da Petroio, 1488?-15541
- Basilica di S. Marco Evangelista al Campidoglio (Rome, Italy)1
- Bassini, Antonio1
- Baʻal Shem Ṭov, approximately 1700-17601
- Bebel, Heinrich, 1472-15181
- Belarus--Vaŭkavysk1
- Belgium--Andenne1
- Belgium--Liège1