The document summarizes the history of feudal Japan from the Yamato period to the Tokugawa shogunate period. It discusses how Japan adopted Chinese culture and Confucianism starting in the Yamato period. The Heian period saw the growth of arts and literature as well as the development of the samurai class. The Kamakura and Ashikaga shogunates established a feudal system led by shoguns. The Warring States period was marked by conflict between daimyo until Oda Nobunaga and Toyotomi Hideyoshi unified parts of Japan. Finally, the Tokugawa shogunate centralized power and established a strict class system, closing Japan off from foreign influence.