History of Damascus is not enough to explain its emergence. the inadequacy of available scientific justifications for Damascus in apart from the urban surroundings, originate hard acceptance for results of many studies on the evolution of Damascus compared to the recommendations which were described by the old specialists when choosing places of cities. This research tends to overtake some of the historical statements; and heading towards proving the importance of existing urban pattern in the spatial domain, that was before the emergence of Damascus and accompanied its inception, and the area subjected to a regional effects had an impact on the regular urban which responds to the terms of the creation of dominate city before Damascus.