Ōyama Iwao
In the spring of 1871, Ōkubo, Kido, Inoue Kaoru, Yamagata Aritomo, Saigō Takamori, Ōyama Iwao, Sanjō Sanetomi and Iwakura held a secret meeting during which it was decided to proceed with abolition of the "han" domains entirely. Later that year, all of the ex-"daimyō" were summoned to the Emperor, and he issued a decree converting the domains to prefectures headed by a bureaucratic appointee from the central government. The "daimyō" were generously pensioned off into retirement, and their castles became the local administrative centers for the central government. This decree resulted in 305 units of local administration, which were reduced to 72 prefectures and 3 municipalities by the end of the year through various mergers, so that by the end of 1871, Japan had become a fully centralized state. The transition was made gradually, so that there was no disruption to the lives of the common people, and no outbreaks of resistance or violence. The central government absorbed all of the debts and obligations of the domains, and many former officials in the domains found new employment with the central government.