The document summarizes key periods and developments in feudal Japan. It describes the Yamato period from 300-710 CE when Japanese rulers began adopting Chinese culture, including Confucianism, language, Buddhism, art, and government structure. Prince Shotoku from 573-621 CE further promoted these adoptions and created a new government and 17 Article Constitution. The Heian period from 794-1156 CE saw the growth of estates and refinement of court life, as well as the development of literature and arts influenced by China. The Kamakura period began in 1185 CE with the establishment of a shogunate under Minamoto Yoritomo and a feudal system similar to Europe developed.