Remains have been found from the Mid-Neolithic Age (about 3000 BC), the late Neolithic Age (about 2000 BC), the early to late Bronze Age of coastal South China (1500–500 BC), the period of the Warring States to the Han dynasty (206 BC −220 AD), the Tang dynasty (618–917 AD) and the Qing dynasty (1644–1911 AD).