After a period of many years, unification was the desire by all at the end of the Warring States Period. Six separate states, Han, Zhao, Yan, Wei, Chu and Qi unified with the establishment of a centralised feudal state. Although the Qin Dynasty was quickly overthrown due to tyranny, there was the implimentation of a range of policies conducive to unification which had far-reaching and signbificant impacts on society lasting 2,000 years. The Han Dynasty folowed and inherited the Qin system. in the Han Dynasty there were brilliant socio-political, economic, military, cultural and artistic achievements, and so this period occupies an important position in the history of the development of Chinese civilzation. the Qin Dynasty was not long and few large toombs have been found, so little is known of the jade ware. From the Han Dynasty much is kmnown and representgs the peak of Chinese jade ware. That is, in terms of number of pieces found, choice of materials and their design as wel as the carvings. The bronze foiundry industry became secondary and its scale of production was shrinking compared to the Shang and Zhou Dynasties. Gold and silver ware gradually developed to very avances stages.