Keywords
- Arbalet, Jean1
- Ardinghelli, Rinaldo degli1
- Arianism1
- Aringhello, Tommaso di1
- Ark of the Covenant1
- Armada (1588)1
- Armaiolo, Puccino1
- Armaleoni, Benedetto degli1
- Armayūnī, Yūsuf ibn ʻAbd Allāh, -15511
- Armenia1
- Armies1
- Armorial bindings1
- Arnaldus, de Villanova, -13111
- Arrigo, Simone d'1
- Artillery1
- Asceticism--Early church1
- Asher Yeshaʻy., a.b.d. ḳ. Ropshits1
- Ashkenazi, Ẓevi Hirsch ben Jacob, -17181
- Astrology, Hebrew1
- Astronomy, Medieval1