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 Korean martial arts, he created the Chil Sung hyungs, a series of 7 hyungs and the Yuk Ro hyungs, a series of 6 hyungs, which brought back some of the combat elements of the ancient Subak art contained in the Muyedobotongji. Years later, Tang Soo Do would change its name to Soo Bahk Do (Way of the Striking Hand), however, both names are still in use by various associations and represent essentially the same martial art. Tang Soo Do sets itself apart from other arts by identifying as a traditional martial art solely interested in self-defense, eschewing sport-orientation. It consists