On June 11, 1868, a Seitai-sho (a document for the government system) imitating the government system based on the ancient Ritsuryo system was issued, and Dajokan (Great Council of State) System was established.
同年閏4月21日(旧暦)（6月11日）、古代の律令制に基づく官制に倣って政体書が公布されて、太政官制がしかれた。