Keywords
- Apologetic writings1
- Aqueducts1
- Architecture--Orders1
- Arithmetic1
- Arithmetic--Study and teaching1
- Armorial bookplates1
- Arnaldus, de Villanova, -13111
- Arrighi family1
- Arrigucci, Andrea1
- Arrigucci, Donato1
- Art1
- Ashkenazim1
- Assassination1
- Astronomy, Greek1
- Astronomy, Medieval1
- Attila, -4531
- Augustus, Emperor of Rome, 63 B.C.-14 A.D.1
- Aurispa, Giovanni, approximately 1376-14591
- Avodah (Yom Kippur liturgy)1
- Azar, Menaḥem ben Natan1