Fujiwara no Nakamaro
Under Genshō's reign, the "Nihon Shoki" was finished in 720. This was the first Japanese history book. Organization of the law system known as the "ritsuryō" was continued under the initiatives of Fuhito until his death. These laws and codes were edited and enacted by Fujiwara no Nakamaro, a grandson of Fuhito, and published as "Yōrō ritsuryō" under the name of Fuhito. The taxation system which had been introduced by Empress Jitō in the late 7th century began to malfunction. To compensate for the decreased tax revenue, the "Act of possession in three generations", an initiative of Prince Nagaya, was enacted in 723. Under this act, people were allowed to possess a newly cultivated field once every three generations. In the fourth generation, the right of possession would revert to the national government. This act was intended to motivate new cultivation, but it only remained in effect for about 20 years.