Jamshid Al-Kashi (1380-1436)
Jamshid Al-Kashi devoted himself to astronomy and mathematics while moving from town to town. On March 1st 1407 he completed his treatise Sullam Al-Sama / The Stairway of Heaven, a work on the distances and sizes of the heavenly bodies. Years later, his Mukhtasar dar ilm-I-hayat / Compendium of the Science of Astronomy written during 1410-11 was dedicated to Sultan Iskander as is indicated in the copy in the British museum.
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by: FSTC Limited, Fri 27 July, 2007