Construction, Reconstruction and expansion of the Great Wall of China This section highlights the pre-first Great Wall, the First Great Wall, the second Great Wall, the third Great Wall, the fourth Great Wall of China and Post Ming Period until the present day. Pre- the first Great Wall The wall preceding the first Great Wall is dated back to 685BC-645BC. During this period, the kingdoms of Qi and Chu constructed a wall between their two kingdoms. The wall incorporated natural features in the Kingdoms terrain so as to fortify the wall. The wall was constructed to River Han, which acted as a natural border and barrier between the two kingdoms.
The next session of the pre- first great was constructed by the Kingdom of Qin between 461BC and 409 BC. This wall was to ensure that the state of Jin remained in the North and West of the Yellow River. The first Great Wall of China The first Great Wall of China is credited to first emperor of China, Shi Huangdi of the Qin dynasty in 221BC who visualized and ordered its creation. This came immediately after he had succeeded in ending regional fighting that had lasted for more than 250 years and eventually uniting several independent states in 221 BCE to form a United China.
The motive of his idea was to use the wall to maintain his power and position. Therefore, the wall could effectively be useful by keeping off raiders from the northern China territories as well as marking as a boundary between Chinese and foreigners. In this approach, Emperor Shi Huangdi managed to safeguard and keep the Chinese people together and isolate them from other groups.
The Wall is estimated as 5,000 kilometers in length extending from Liaodong to Lintao. The first Great Wall construction involved joining and fortification of a number of shorter walls, which had already been built by smaller Qi and Chu kingdoms, who lived within Emperor Shi Huangdi’s new empire. The joining of the walls of the two kingdoms created a wall of about 1,800 kilometers in length. Around 350 BC, Qin Dynasty extended its northern wall by over 2,000 kilometers to what is currently known as Gansu province in the west of China.
The wall passed the Yulin city to the northernmost bend, which is east on the Yellow River. This wall was meant to keep marauding Eastern Hu nomads out. Finally on the first great wall, The Yan Kingdom added another wall of about 1,200 kilometers, which extended from west of Yellow River to what is currently known as Zhangjiakou city at east of Liaoning Province.
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