- Astrological geomancy1
- Astrology, Hebrew1
- Astrology, Indic1
- Astronomy, Ancient1
- Astronomy--Religious aspects--Jainism1
- Atlantic Ocean--English Channel1
- Atonement1
- Audiore, Antonio1
- Aurangzeb, Emperor of Hindustan, 1618-17071
- Aurispa, Giovanni, approximately 1376-14591
- Austria--Lambach (Upper Austria)1
- Austrian1
- Averroës, 1126-1198. Talkhīs kitāb al-ʻIbārah1
- Averroës, 1126-1198. Talkhīṣ kitāb al-maqūlāt1
- Averroës, 1126-1198. Talkhīṣ madkhal Furfūriyūs1
- Avicenna, 980-10371
- Avicenna, 980-1037. Qaṣīdah al-rūḥīyah1
- Avraham ben Sahlan, -10301
- Awḍaḥ al-masālik ilá Alfīyat Ibn Mālik (Ibn Hishām, ʻAbd Allāh ibn Yūsuf)1
- Azharī, Khālid ibn ʻAbd Allāh, d. 1499. Muwaṣṣil al-ṭullāb ilá Qawāʻid al-iʻrāb1