Explore Baghdad, 1258: The Mongol Siege
Muḥammad ibn Muḥammad ibn al-Ḥasan al-Ṭūsī, commonly known as Naṣīr al-Dīn al-Ṭūsī or simply (al-)Tusi, was a Persian polymath, architect, philosopher, physician, scientist, and theologian, as well as a prominent Shiʿite scholar.