Sinan ibn Thabit

Sinan ibn Thabit ibn Said Abu Qurra (* 880, † 943 in Baghdad ) was a physician, astronomer and mathematician.

He was the son of Thabit ibn Qurra mathematician and astronomer, who worked at the court of the Caliph in Baghdad. His son Ibrahim ibn Sinan was also a prominent mathematician.

His father died in 901 Sinan made ​​under Caliph al - Muqtadir, who reigned, career and became head of the hospitals of Baghdad from 908. To 931 had all the doctors who practiced in Baghdad, previously examined by it. At that time he was like his father, follower of the sect of the Sabians of Harran. As 932 the caliph al - Qahir came to power, the Sabians were persecuted. Although Sinan moved to Islam, but still lost his post and fled to Khorasan. Under the ruling Caliph from 934 ar - Radi bi- ' llāh Sinan returned to Baghdad back, after his death in 940, he left the government in turmoil but again went to Baghdad and Wasit on the Tigris.

From Sinan no books or treatises on medicine are known, but he wrote about politics (where he advocated a government modeled after the Republic of Plato 's ), mathematics and astronomy, and dealt with philosophy. However, he can no works are attributed with certainty. One of his astronomical works is connected to the Sabians - religion, the allocation of planets on individual days. In another work, get in excerpts by al -Biruni, he deals with the meteorological quality anniversaries.