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
Japanese martial arts in other schools it is practiced as a sport. literally means "empty hand". It is also sometimes called . Karate originated in and, is technically, Okinawan, formerly known as the Ryūkyū Kingdom, but now a part of present-day Japan. Karate is a fusion of pre-existing Okinawan martial arts, called ""te"", and Chinese martial arts. It is an art that has been adopted and developed by practitioners on the Japanese main island of Honshu. Karate's route to Honshu began with Gichin Funakoshi (船越 義珍 "Funakoshi Gichin", 1868–1957), who is called the father of karate, and is the founder of Shotokan karate.