- Aeneas (Legendary character)1
- Aesop's fables1
- Affinity (Law)1
- Africa1
- Africa--Atlantic Coast1
- Agnes, Saint, Martyr1
- Alban, Saint, -304?1
- Alchemy--Bibliography1
- Alcuin, 735-804. Correspondence1
- Alexander III, Pope, -11811
- Alexander, de Villa Dei. Doctrinale puerorum1
- Alfonso X, King of Castile and Leon, 1221-12841
- Almanacs, German1
- Alphabets1
- Alum tawed bindings1
- Ambrose, Saint, Bishop of Milan, -3971
- An authorization to perform a ritual slaughter according to the Jewish law by Avraham Mosheh Leʼon of Carpentras to his son Daniʼel, written on 25 of Tamuz 17641
- Angels1
- Angels--Christianity1
- Angels--History of doctrines1