Chinese civilization started well before most other. Officially, it was the first civilization to cast metal in 8,000 BCE; 2,000 years before anyone else and 4,000 years before Europeans. It was emperor Chin of the Qui Dynasty who united many of the warring states of China and by joined many parts of the Great Wall created a more or less unified people. Unfortunately, as an avid believer of life-prolonging methods, he was a constant user of a concoction with Mercury. he died 6 years later to be succeeded by the Eastern Han Dynasty