Qudamah ibn Ja'far

Qudama ibn Ja'far al-Katib al-Baghdadi (Arabic: قدامة بن جعفر الكاتب البغدادي‎‎; ca. 873 – ca. 932/948), also known as Abu'l Faraj, was an Syriac scholar and administrator for the Abbasid Caliphate, who converted to Islam.

Little is known with certainty about Qudama's life and work. He was probably born ca. 873/874, possibly at Basra, came from a Syriac Christian family and converted to Islam ca. 902–908. He held various junior administrative positions in the caliphal secretariat in Baghdad, and eventually rose to a senior post the treasury department. Various dates for his death have been supplied, ranging from 932 to 939/940 and 948.

Of his several books on philosophy, history, philology, and administration, only three survive:

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