- Arcispedale Santa Maria Nuova (Reggio Emilia, Italy)1
- Argonauts (Greek mythology)1
- Ark of the Covenant1
- Armorial bookplates1
- Arthur, King1
- Arthurian romances1
- Artillery1
- Asher Yeshaʻy., a.b.d. ḳ. Ropshits1
- Assumption of the Blessed Virgin Mary1
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- Astrology, Arab1
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- Augustine, of Hippo, Saint, 354-4301
- Aurangzeb, Emperor of Hindustan, 1618-17071
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