Tang and Song info
The Tang Dynasty is regarded by some historians as the height of Chinese civilizations. In this dynasty, China saw governmental reforms, intended to strengthen the internal government by centralizing, with a large civil service, and large territory expansion. Anyone with talent was eligible for a governmental post as long as they could pass ethical testing based upon Confucian classics. Tang law codes are still in existence, and to some extent, were used by the Japanese, Koreans, and Vietnamese. It was a dynasty of prosperity and education. Literature, science, technology, art, and poetry flourished along with inventions such as the printing block. Advances in agriculture and irrigation doubled harvests is some provinces. Increased harvests brought increased populations.