UNESCO World Heritage Sites
walls to connect the remaining fortifications
along the empire's northern frontier.
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The great wall was built when seven powerful
states appeared at the same time, to defend
themselves. At that time the wall was 3107
miles and each part of wall belonged to
different part of the states. In 221B.C the
Emperor Qin Shi Huangdi ordered to connect
the walls (built by all the states) also he added
a part of his section because he was afraid
from the northerns- that were called Xiongnu.
Facts
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It is located in Northern China.
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The Great Wall was built over 2300 years.
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When all the sections were measured it
combined a total of 21196.18km (13170.7mi).
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It was built to prevent invasions.
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To protect Silk Road trade.
Dynasties
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It was built in different states/dynasties to
protect diffrent territorial borders.
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Zhou Dynasty (770-221 B.C) – State overloads
built state border walls.
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