Karate has over 300 years' history. It was said that there are more than one million people practising Karate around the world.　Among the many styles of Karate, Gojuryu is the style with the longest history and it is also the most widely practised style worldwide. All Japan Karatedo Federation (AJKF) Ryushinkan Hong Kong Branch Ryushinkai was established in 1998. It is the only Japan-affiliated Karate dojo in Hong Kong recognized by both AJKF and the government of Hong Kong.