Page 7 - The Great Wall of China
P. 7

Apart from defense, other purposes of the  construction  of  watch  towers,  troop
            Great Wall have included border controls,  barracks, garrison stations, signaling
            allowing the  imposition  of  duties  on  capabilities  through  the  means  of
            goods  transported  along  the  Silk  smoke or fire, and the fact that the
            Road, regulation or encouragement of  path of the Great Wall also served as
            trade and the control of immigration  a transportation corridor.
            and  emigration.  Furthermore,  the
            defensive  characteristics  of  the
            Great  Wall  were  enhanced  by  the



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