Nasir al-Din al-Tusi
Naṣīr al-Dīn al-Ṭūsī | |
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نصیرالدین طوسی | |
Iranian stamp for the 700th anniversary of his death | |
| Title | Khawaja Nasir |
| Personal life | |
| Born | 18 February 1201 Tus, Khurasan, Khwarazmid Empire |
| Died | 26 June 1274 (aged 73) Al-Kadhimiya Mosque, Kadhimiya, Baghdad, Ilkhanate |
| Era | Islamic Golden Age |
| Region | Persia (Iran) |
| Main interest(s) | Kalam, Islamic Philosophy, Astronomy, Mathematics, Biology and Medicine, Physics, Science |
| Notable idea(s) | Spherical trigonometry, Tusi couple |
| Notable work(s) | Tajrid al-I'tiqad, Zij-i ilkhani, Rawḍa-yi Taslīm, Akhlaq-i Nasiri, al-Risalah al-Asturlabiyah, Al-Tadhkirah fi 'Ilm al-Hay'ah (Memoir on the Science of Astronomy) |
| Religious life | |
| Religion | Islam |
| Denomination | Shia |
| Jurisprudence | Ja'fari |
| Teachers | Kamal al-Din ibn Yunus |
| Creed | Ismai'ili (Initially) Twelver |
| Muslim leader | |
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Muḥammad ibn Muḥammad ibn al-Ḥasan al-Ṭūsī (1201 – 1274), also known as Naṣīr al-Dīn al-Ṭūsī (Arabic: نصیر الدین الطوسی; Persian: نصیر الدین طوسی) or simply as (al-)Tusi, was a Persian polymath, architect, philosopher, physician, scientist, and theologian. Nasir al-Din al-Tusi was a well published author, writing on subjects of math, engineering, prose, and mysticism. Additionally, al-Tusi made several scientific advancements. In astronomy, al-Tusi created very accurate tables of planetary motion, an updated planetary model, and critiques of Ptolemaic astronomy. He also made strides in logic, mathematics but especially trigonometry, biology, and chemistry. Nasir al-Din al-Tusi left behind a great legacy as well. Tusi is widely regarded as one of the greatest scientists of medieval Islam, since he is often considered the creator of trigonometry as a mathematical discipline in its own right. The Muslim scholar Ibn Khaldun (1332–1406) considered Tusi to be the greatest of the later Persian scholars. There is also reason to believe that he may have influenced Copernican heliocentrism.