al-Ḥajjāj b. Yūsuf b. Maṭar - Encyclopaedia of Islam, THREE
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[Article]
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De Young, Gregg
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Leiden
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Brill
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(921 words)
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Al-Ḥajjāj b. Yūsuf b. Maṭar (fl. 169-218/786-833) was reportedly the first person to translate Euclid's Elements and Ptolemy's Almagest into Arabic. Nothing is known of his personal life. The Arabic translation of the Almagest , ascribed to both al-Ḥajjāj and Elias, son of Sergius, is extant. When compared with the later Arabic version attributed to Isḥāq b. Ḥunayn (d. 297/910), the differences between the two versions suggest that they are independent translations. Arabic sources report that al-Ḥajjāj translated the Elements at the