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Al-ʻIjliyyah

Syrian scientist, mathematician, and astronomer

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She is sometimes known in modern popular literature as Mariam al-Asṭurlābiyya (Arabic: مريم الأسطرلابية) but her supposed first name 'Mariam' is not mentioned in the only known source about her life.

Life

According to ibn al-Nadim, she was the daughter of another astrolabe maker known as al-ʻIjliyy; she and her father were apprentices (tilmīthah) of an astrolabe maker from Baghdad, Nasṭūlus.

Al-ʻIjliyyah manufactured astrolabes, an astronomical instrument, during the 10th century; she was employed by the first Emir of Aleppo, Sayf al-Dawla, who reigned from 944 to 967.

Beyond that information, nothing is known about her. Her supposed name, "Mariam", is not supported by sources from her time, and the phrase "al-Asturlabiyy" in the names by which she and her father are known simply means "the astrolabist", and indicates their profession; astrolabes were long known by her time.

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