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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

Shima – Okinawan Sumo

Wrestling has been a popular form of combat sport throughout history, with various styles and techniques developed by different cultures around the world. One such intriguing style is Shima, also ...

The Bubishi – Part 1

Bubishi - The classic manual of combat. The origin of the Bubishi. The Bubishi is a classical Chinese martial arts manual that holds significant importance in the realm of Okinawan ...

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 ...