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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

Escrima

The World of Eskrima, Arnis, and Kali. In Filipino martial arts, a trio of terms often intertwine, leading to some confusion for newcomers to these arts. These terms are Eskrima, ...

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 ...

Ten Precepts of Karate

In October 1908, Anko Itosu (1831-1915) wrote a letter, "Ten Precepts of Karate," to draw the attention of the Ministry of Education and the Ministry of War in Japan. This ...