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
Martial law in Taiwan National Security Law, which had been passed a few days before the lifting of martial law. Martial law in Taiwan On 19 May 1949, the Governor of Taiwan Province, Chen Cheng, and the Ministry of National Defense of the Republic of China (ROC) promulgated the "Order of Martial Law" to announce the imposition of Taiwan martial law (). Until the order was lifted by the President Chiang Ching-kuo on 15 July 1987, Taiwan had been under martial law for more than 38 years, which was qualified as "the longest imposition of martial law by a regime anywhere in the world"