- Bible. Corinthians, 2nd1
- Bible. Epistles of Paul1
- Bible. Matthew1
- Bible. Old Testament1
- Bible. Wisdom of Solomon1
- Biography1
- Blaise, Saint, -approximately 3161
- Blood--Circulation1
- Bona, Queen, consort of Sigismund I, King of Poland, 1494-15571
- Booksellers and bookselling1
- Bread1
- Brescia (Italy). Podestà1
- Brulefer, Etienne, -approximately 14991
- Buildings1
- Buonaccorsi family1
- Buonaccorsi, Constanza1
- Buonaccorsi, Niccolò di Piero1
- Buonaccorsi, Piero1
- Buondelmonte, Piero1
- Burdah (Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʻīd)1