added by archaeologs A boy king (Chao Cheng) who came to China's throne and completed the Ch'in conquests and in 221 created the Ch'in empire. He proclaimed himself Ch'in Shih Huang-ti (First Sovereign Emperor of Ch'in) and instituted a rigid authoritarian government. During the Ch'in Dynasty the writing system was standardized along with weights and measures and coinage. The Great Wall was also built. Rebellion erupted after Shihhuangdi's death in 210 BC. In 206 the dynasty was overthrown and replaced by the Han dynasty (206 BC-220 AD). His tomb is the focal point of a vast mausoleum complex that includes a buried army of 7000 lifesized terra-cotta figures.