History of Great Wall of China | Length and Facts
Great Wall: The history of the Great Wall of China began when fortifications built by various states during the Spring and Autumn (771–476 BC) periods (475–221 BC) were connected by the first emperor of China, Qin Shi Huang, to protect his newly founded Qin dynasty (221–206 BC) against incursions by nomads from Inner Asia. The walls were built…