- Birmāwī, Muḥammad ibn ʻAbd al-Dāʼim, 1362-1428. Nubdhah al-alfīyah fī al-uṣūl al-fiqhīyah1
- Birth of a person5
- Biserica Ortodoxă Română. Evanghelia3
- Bishops6
- Bishops--Appointment, call, and election4
- Bishops--Temporal power1
- Bituminous materials industry1
- Black Death1
- Black Sea4
- Blaise, Saint, -approximately 3163
- Blasphemy (Islam)2
- Blassori, Petrino1
- Blassori, Ursina1
- Blessing and cursing6
- Blessing of the moon1
- Blind tooled (decoration)1
- Blind tooled bindings349
- Blocked bindings1
- Boards1
- Bobadilla, Francisco de, -15021