The Qin Dynasty (Chinese: 秦朝; pinyin: Qín Cháo; Wade–Giles: Ch'in Ch'ao; was the first ruling dynasty of Imperial China, lasting from 221 to 206 BC.
The Qin state derived its name from its heartland of Qin, in modern-day Shaanxi. The Qin's strength had been consolidated by Lord Shang Yang in the 4th century BC, during the Warring States Period.
In the early third century BC, the Qin accomplished a series of swift conquests; the state subjugated the Chu, remnants of the Zhou Dynasty, and various other states to gain undisputed control of China.[/img]