Jiichirō Matsumoto

Jiichirō Matsumoto (Japanese: 松本 治一郎, Matsumoto Jiichirō; 18 June 1887 – 22 November 1966) was a Japanese politician, businessman, and social activist who was a prominent leader of the Buraku liberation movement. Born into a Burakumin community in Fukuoka Prefecture, Matsumoto dedicated his life to combating discrimination, earning the title "father of Buraku liberation" (部落解放の父, buraku kaihō no chichi). His career spanned from the pre-war Taishō period through Japan's post-war reconstruction, making him a key figure in the struggle for minority rights and social justice.

Matsumoto's activism was financially supported by a successful construction company he founded, which also provided employment for many Burakumin. In the 1920s, he rose to national prominence as the leader of the Suiheisha (Levellers' Society), the first nationwide organization dedicated to ending Buraku discrimination. His confrontational tactics against discriminatory practices by individuals and state institutions led to several prison sentences. First elected to the Imperial Diet in 1936, he was an early and consistent opponent of Japanese militarism.

After World War II, Matsumoto became a central figure in the left wing of the newly formed Japan Socialist Party (JSP). Elected to the new House of Councillors in 1947, he served as its first Vice-President. An outspoken republican, he caused a national sensation by refusing to perform the deferential "crab walk" ritual before Emperor Hirohito at the opening of the Diet, an act seen as a powerful symbol of the new democratic era. Briefly purged from public office by the American occupation authorities in 1949, he re-emerged in the 1950s as a leading activist in the international peace movement, advocating for Japanese neutrality and forging connections with leaders across Asia.

Throughout his career, Matsumoto remained the undisputed leader of the Buraku liberation movement. He was instrumental in compelling the Japanese government to formally address the issue of discrimination, which led to the creation of the 1965 Dōwa (assimilation) policies, the cornerstone of post-war government efforts to resolve the Buraku issue. He died in 1966, leaving a political dynasty that continued through his grandson, Ryu Matsumoto.