History
The party was established in 1894 by five Okayama-based MPs who had left the Rikken Kakushintō. Led by Inukai Tsuyoshi, it won four seats in the September 1894 elections.
In February 1896 it merged with Rikken Kaishintō, Rikken Kakushintō, Teikoku Zaisei Kakushin-kai and Ōte Club to form Shimpotō.
References
Chūgoku Progressive Party Wikipedia(Text) CC BY-SA