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Sahl Bishr
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Astronomer
mathematician
Sahl ibn Bishr al-Israili, more commonly; Rabban al-Tabari often known as Zahel or Zael was a Syriac Christian astrologer, astronomer and mathematician from Tabaristan.
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Born
786
Amol, Central District, Iran
Died
845
(aged 59)
Nationality
Abbasid Caliphate
Ethnicity
Jewish people