Author
- Varāhamihira2
- Vijñānātman2
- Viśvanātha Daivajña2
- William Perault2
- Ātmārāma2
- 'Ali ibn al-'Abbas al-Majusi1
- Abraham ben Mordecai Farissol1
- Abu al-Qasim al-Zahrawi1
- Abu ʻAbd Allāh Muḥammad ibn al-Bahāʼ1
- Al-Khazini1
- Al-Mawardi1
- Alberto Cattani1
- Aldobrandino da Siena1
- Alexander of Villedieu1
- Amaracandrasūri1
- Ambrose1
- Ananta Bhaṭṭa1
- Anantabhaṭṭa1
- Andreas Vesalius1
- Andreas de Escobar1