Nasir al-Din al-Tusi

Type Figure Region Persia Time 1201–1274 Also known as Nasir al-Din al-Tusi、Nasir al-Din Muhammad ibn Muhammad ibn Hasan Tusi、Khaja Nasir

Nasir al-Din al-Tusi (1201–1274) was a Persian mathematician, astronomer, and philosopher who served the Ismailis at Alamut, later joined Hulegu, and…

Timeline

1201–1213Tus · KhurasanBorn in Tus, Khurasan, in 1201, he was taught by local scholars in childhood and from the 1210s studied itinerantly in Nishapur, Iraq, and elsewhere, laying foundations in mathematics, astronomy, and philosophy.
1213–1256Alamut · GilanFrom around 1213 he served at Alamut; between 1231 and 1240 he wrote mathematical works such as Treatise on the Quadrilateral and studied astronomical observations in the castle, while participating in Ismaili scholarly activities, until the castle fell in 1256.
1259–1274Maragheh · AzerbaijanAfter 1256 he entered Hulegu's service; in 1259 he directed the completion of the Maragheh observatory and organized the compilation of the Ilkhanid Astronomical Tables, dying en route to Baghdad or shortly after arriving in 1274.

Sources

Encyclopaedia of Islam, Second Edition: Nasir al-Din al-Tusi — A. I. Sabra https://referenceworks.brillonline.com/
Nasir al-Din al-Tusi's Memoir on Astronomy — Nasir al-Din al-Tusi