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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

The McDojo Phenomenon

Unveiling the World of Dubious Martial Arts Studios: The McDojo Phenomenon. In the realm of martial arts, there exists a rather controversial entity known as the "McDojo." This term has ...

Kōsaku Matsumora

Kōsaku Matsumora was a respected practitioner of Tomari-te, a style of Okinawan martial arts that developed in the Tomari region. Kōsaku Matsumora was born in 1829 and received his training ...

The history of the black belt

The history of martial arts belts, particularly the black belt and the introduction of colored belts, encompasses various stories and influences that have shaped the ranking system we know today ...