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
Vovinam established in Houston, Texas, by Vietnamese emigrants in 1976, after the Fall of Saigon. By 2000, Vovinam schools had been established in Australia, Belgium, Canada, France, Germany, Italy, Morocco, Poland, Spain, Switzerland, and the United States. Vovinam now exists as "Vovinam Việt Võ Đạo", without the political overtones it originally carried. The Vovinam Việt Võ Đạo logo is framed in a yellow shape composed of a rectangle conjoined with a circle, angular at the top, round at the bottom. This shape symbolizes the perfection of the hard and soft. Within this yellow shape, the red text "Vovinam" is written above