In October, 1875, Taisuke ITAGAKI from Tosa resigned from the Meiji Government for the second time following the political change which had happened in 1873, and while educating the nation's people, he initiated a course of action to prepare for the liberalization of parliamentary procedure from outside of the Meiji Government.
1875年（明治8年）10月、土佐の板垣退助が明治6年の政変に続いて明治政府を再び離脱し、国民を教化しつつ明治政府の外から自由主義的な議会制度を準備する運動を起こす道を歩み始めた。