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
Korean martial arts unarmed Korean Martial Arts Taekwondo and Hapkido though such traditional practices such as ssireum - Korean Wrestling - and taekkyeon - Korean Foot Fighting - are rapidly gaining in popularity both inside and outside the country. In November 2011, Taekkyeon was recognized by UNESCO and placed on its Intangible Cultural Heritage of Humanity List. There has also been a revival of traditional Korean swordsmanship arts as well as knife fighting and archery. Wrestling, called ssireum, is the oldest form of ground fighting in Korea, while subak/taekkyeon was the upright martial art of foot soldiers. Weapons were an extension of those