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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

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 ...

Bodhidharma and martial arts

Did Bodhidharma already know martial arts? I did some research about Bodhidharma's background in martial arts. This is what I found. The origins of Bodhidharma's martial arts background are somewhat ...

Funakoshi Niju kun

Gichin Funakoshi wrote the Nijū kun principles, which he likely developed through his personal experiences and contemplation of karate's practice and philosophy. The principles serve as guidelines for practitioners to ...