![The great wall of China stretches roughly 5,500 miles through the rolling Chinese hillside.
Up until the year 220 BCE, China was controlled by many different states. These states were constantly at war with one another. China was not a unified nation, until in 221 BCE, Qin Shi Huang conquered all the opposing states and united China, establishing the Qin dynasty. He is regarded as the first emperor of China.
Qin Shi Huang saw that many of the states had begun to build feeble walls. Under the Qin reign, these walls were fortified and connected, making one great wall. [Map] [Wiki]](http://25.media.tumblr.com/tumblr_m2wdepT2h31ruu4omo1_500.jpg)
The great wall of China stretches roughly 5,500 miles through the rolling Chinese hillside.
Up until the year 220 BCE, China was controlled by many different states. These states were constantly at war with one another. China was not a unified nation, until in 221 BCE, Qin Shi Huang conquered all the opposing states and united China, establishing the Qin dynasty. He is regarded as the first emperor of China.
Qin Shi Huang saw that many of the states had begun to build feeble walls. Under the Qin reign, these walls were fortified and connected, making one great wall. [Map] [Wiki]
