Emperor Kōtoku makes a decree setting policy on the building of tombs.

He discontinues the old customs of sacrificing people in honor of a dead man, and forbids ill-considered rituals of purgation.

His Great Reform edict changes Japan's political order.

It will lead to the establishment of a centralized government with Kōtoku ruling from his palace, Naniwa Nagara-Toyosaki Palace, in Osaka.