The Turks were defeated by Crusaders at Jerusalem because "they could not remain united," since it was this lack of unification that led to their forces being divided and reckless. <span />
It developed the first written legal code of law by king Hammurabi
Answer:
Horace Mann
Explanation:
Credit for our modern version of the school system usually goes to Horace Mann. When he became Secretary of Education in Massachusetts in 1837, he set forth his vision for a system of professional teachers who would teach students an organized curriculum of basic content.
Military conquests by the Arab Empire and traders of Islamic faith were the primary means for spreading Islam to Africa, Europe, and Asia. I think its this one