dramatically by the intensification of agriculture, the development of a bureaucracy, the inventions of iron technology and the spread of urbanization and commerce. During the latter part of the Zhou reign — in the Spring and Autumn period (771-482 B.C.) and the Warring States period (481-221 B.C.) — China expanded demographically and developed systems of political and social philosophy.
According to the National Palace Museum, Taipei: “The craftsmanship of the Western Zhou dynasty holds an important place in the history of technology. Major advances were made in the production of bronze and proto-glass vessels, as well as the development of proto-porcelain. The bronze burning-lens, designed according to optical theory, was also a noteworthy achievement. [Source: National Palace Museum, Taipei npm.gov.tw \=/ ]
Chinese is the usual Zhou metal iron maserting weapons
