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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

The Naihanchi Kata

The Naihanchi Kata is a very old Kata, which can be found in many different styles and variations. The special thing about this Kata is the movement in a straight ...

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 ...

Glima, Iceland’s martial arts

Unveiling Iceland's Viking Legacy. Glima, a martial art deeply rooted in Icelandic heritage, stands as a testament to the rich Viking legacy. Developed during the Viking Age, Glima has evolved ...