a visiting scholar in Ferrara
from his dark skin and turban it is easy to see that Al-Kashi is from the middle East.
Al-Kashi is one of the best mathematicians in the Islamic world. He was born in Kashan, in central Iran. This region was controlled by Tamurlane, better known as Timur. Al-Kashi lived in poverty during his childhood and the beginning years of his adulthood.