Facts
of the Great Wall of Han Dynasty
The Great
Wall of China was continuously built during the Han Dynasty (206BC-220AD).
It was extended towards the west to Lop Nur Lake in today's Xinjiang
Uygur Autonomous Region. And an outer Great wall was added to the north
of the Qin Great Wall. With its system of fortifications and beacon
towers, the Han Great Wall reached a total length of about 10,000 kilometers.
Tang
Great Wall
With the expansion of the Tang Empire (618-907AD), the frontier was
pushed further north, and the Great Wall ceased its function for almost
300 years.
Since the
Han, various dynasties, including Northern Wei,Eastern Wei, Northern
Qi, Northern Zhou, Sui, Liao,Jin and Ming, rebuilt the Great Wall on
extensive scale. The engineering projects undertaken in the Ming dynasties
were the largest.
Tang, Yuan
and Qing dynasties, which did not undertake construction of the Great
Wall on any large scale, nevertheless repaired the passes and fortresses
and made use of them. It may be said, therefore, that the Chinese governments
never interrupted defence work over the Great Wall in the course of
more than 2,000 years.
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