
China is unique among the four great ancient civilizations in that it has changed very little over the millennia. Unlike India, Egypt, and Mesopotamia, China's impassable mountains and vast deserts protected China from invasion. Free from foreign interference, China's great dynasties,...

China is unique among the four great ancient civilizations in that it has changed very little over the millennia. Unlike India, Egypt, and Mesopotamia, China's impassable mountains and vast deserts protected China from invasion. Free from foreign interference, China's great dynasties,...