Vovinam to demonstrate Vovinam publicly in Hanoi with his disciples in 1940, Nguyễn was invited to teach the art at Hanoi's Ecole Normale, and Vovinam gained in popularity. During the following years, political unrest increased throughout Vietnam; due to the system's nationalist political orientation, the art came under suppression. By 1954, Nguyễn had emigrated to South Vietnam, where he was able to continue to teach and establish Vovinam schools. After his death in 1960, Grandmaster Le Sang continued the development and international promotion of Vovinam until his own death on September 27, 2010. The first Vovinam school outside of Vietnam was
Northern Shaolin (martial art) Ten Classical Forms. They are standard in all of Gu's Northern Shaolin Kung Fu lineages. However, as mentioned above, they are sometimes taught or learned in differing orders. As with many different martial arts, from lineage to lineage, one may find slight differences in the way the movements are expressed. Students learning this style usually do not only learn the 10 core forms however. There are often additional teachings such as introductory material and forms, weapons forms, qigong, etc. Northern Shaolin (martial art) In its broadest sense, Northern Shaolin () refers to the external (as opposed to internal) martial arts