Person1201–1274
Nasir al-Din al-Tusi
Persian scholar from Tus. He served the Nizari Ismailis in Quhistan and at Alamut, entered Hulagu’s service after Alamut fell in 1256, founded the observatory at Maragheh in 1259 and directed the compilation of the Ilkhanid astronomical tables. He wrote on astronomy, on mathematics — treating trigonometry as a discipline in its own right — and on ethics and philosophy, and died in Baghdad in 1274.
- Dates
- 18 February 1201 – 26 June 1274
- Events
- 1 event
- Regions
- Middle East and Egypt
- In the threads
- Mongol conquests
Events
- Founding of the Maragheh Observatory1259 · Middle East and Egypt