Summary: History needs men and women of thought and those of action. In the 8th and 9th centuries, the Arabs, Persians, Spaniards and Africans had laid the intellectual foundation of Islam. In the 10th century, the Turks provided the primal energy to renew Islamic civilization and supplied the men and women of action who propelled it for over a thousand years. The Turks tower over the...

For a brief moment, towards the end of the 12th century, the Muslim world was politically united under one caliph ruling from Baghdad. This political unity, rare in Islamic history, projected itself on the military plane. In West Asia, the Crusaders were ejected from Palestine, Lebanon and Syria. Salahuddin recaptured Jerusalem in 1187. Four years later, in 1191, Muhammed Ghori of Ghazna...