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The great wall of china

The great wall of china is the largest defence fortifications and the greatest building enterprise ever undertaken by men.That's about 1500 miles long.this unique wall stretches from the gulf of chili.yellow sea along the northern frontierof china to kansu province in the west.width of this wall varies from 15 to 40 feat at the base,amd 12to35 factat tje summit.ots hight ranges from.It only statur that only identified from the moon.


walled frontieres between the kingdom in china.Date from at least the 4th centure BC.in the 3td centure bc.the first comperor to the china.Afteruniting china link up rmrhe edited walls and build new aection to created the geat wall as a continues unit. His purpose was to defense china.From the hunse of the nort.

wach nort from the garison station were set as regular intervals i order the signals and bulwark.The wall as constructed in such a way the troops summonds by beacould Fire cold be quieqly transported along its top.


The wall was buil mostly was rubble.Although the western section are of tempered eart and important passes are of brick or masonary.The wall was frequently modified in latter contryies with new facilities of high toward,before that exterion repairs and extention were made ay various periods, notably during the ming.
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