Shunjuen Incident

Shunjuen Incident 春秋園事件
Shunshūen jiken
Sumo wrestlers barricaded in Shunjuen restaurant on January 6, 1932
Date	January 6, 1932 (1932-01-06)
Location	Tokyo Japan
Goals	Full scale reforms from the Sumo Association executives to improve wrestlers living conditions.
Methods	Strike
Resulted in	Expulsion of the 48 strikers Foundation of the Kansai Sumo Association (Kansai Kakuryoku Kyokai, 関西角力協会) Resignation of several Sumo Association stablemasters
Parties
Striking wrestlers Greater Japan Sumo Association
Lead figures
Tenryū Saburō Ōnosato Mansuke Asashio Tarō II Ryōgoku Kajinosuke I [ja]
Number
48 rikishi 32 from Dewanoumi ichimon Sumo Association board of directors

The Shunjuen Incident (春秋園事件, Shunshūen jiken), also known as the 'Tenryū Incident' or 'Tenryū-Ōnosato Incident' (after the ring name of its ringleaders), was an unprecedented strike launched by professional sumo wrestlers that occurred on January 6, 1932, when 32 wrestlers from the Dewanoumi ichimon went on strike against the Greater Japan Sumo Association, demanding that the organization improve its constitution. The name of the incident derives from the Chinese restaurant Shunjuen (in Shinagawa, Tokyo), in which the strikers vowed to unite and locked themselves in.^[1]