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Jamal ad-Din
Persian astrologer in the court of Kublai Khan · Scientists
Jamal ad-Din Muḥammad ibn Ṭāhir ibn Muḥammad al‐Zaydī al‐Bukhārī was a 13th-century Persian astronomer. Originally from Bukhara, he entered the service of Kublai Khan around the 1250s to set up the Islamic Astronomical Bureau in the new capital of Beijing, to operate in parallel with the traditional Chinese bureau.
Jamal ad-Din is read about 12 times a day, in 14 languages.
A typical day, 30 days to 21 August 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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Kublai Khan thus maintained the bureaucratic structure, but allowed Chinese observations and predictions to be checked by respected Muslim scholars.
Category
Scientists
Type
Scientist
Status
Deceased
