Following on from my previous post of 1st December 2019, regarding the research paper entitled: ‘The diffusion routes of Jiu-Jitsu to and in the U.S. since the turn of the last century to 1930s: Focus on the transfiguration and succession of Jiu-Jitsu by the two Americans’ By YABU Kotaro (2012) (Ritsumeikan University, Japan) Yabu states […]