- Early Japan was inhabited by the Ainu people, who were later displaced by migrants from mainland Asia around 500 CE. This led to the rise of the first dominant clan called the Yamato.
- In the 6th century, Prince Shotoku established Buddhism as the official religion and used Chinese models to reorganize the government. Major reforms transformed Japan into a centralized state modeled on Chinese bureaucracy and institutions.
- The Heian period saw the imperial court move to Kyoto and a period of relative peace and cultural flowering. However, powerful noble families emerged who controlled the political realms, weakening central authority.