Al Walid was the most powerful caliph of the Omyyad dynasty with its court at Damascus. Under Walid the Arab empire reached its greatest territorial extension from the Indus to Spain. Map.

Walid proclaimed Arabic as the official language in the empire. He was also known as a great builder of mosques in Damascus, Mecca, and Medina. The long history of Islamic architecture really begins with al-Walid.

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Biography