Al-Bitruji (d. 1204 C.E.)
Nur Al-Din Ibn Ishaq Al-Bitruji was born in Morocco, lived in Ishbiliah (Seville) and died around 1204 CE. He worked hard, unsuccessfully, at modifying Ptolemy's system of planetary motions. Al-Bitruji's book Kitab-al-Hay'ah was popular in thirteenth century Europe.
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by: FSTC Limited, Wed 18 July, 2007