Hong Junsheng
Hong Junsheng (), born in 1907, Henan Province ( ), China, was a Chinese martial arts practitioner, teacher and author. Hong was the longest serving disciple for the Chen-style t'ai chi ch'uan ( ) master Chen Fake (陈发科, 1887–1957). Starting in 1930, Hong trained uninterrupted with Chen for fifteen years. In 1944, Hong moved to Jinan ( ), Shandong Province ( ). In 1956, he returned to Beijing to study again with his teacher, Chen Fake. In Jinan, Hong practiced and researched the meaning of Chen-style t'ai chi ch'uanand had many questions. This was a time for review and answering questions. Hong’s fundamental question was why the form and the applications did not match exactly. He further asked if he could modify his form to match the primary application Chen had taught him. Over the next six months, Chen and Hong worked daily to make sure there was not one useless move in the form. Hong, later, expressed his own understanding of the "ch'uan" through his teachings and his writings. His theories and training principles are now known as the Practical Method for Chen-style t'ai chi ch'uan ( ). Through the turmoil of the Cultural Revolution, Hong maintained his dedication to the enrichment of his art. In the Era of Restructuring, Hong had trained a new generation of Chen Stylists and wrote several articles to illuminate the mysteries of Chen-style t'ai chi ch'uan. As China opened up to the international community, Hong was rediscovered as an important linkage to this ancient Chinese martial arts tradition. T'ai chi enthusiasts from all over the world would come to train with this remarkable man. Fame and fortune did not change Hong. He remains steadfast to the ideals of the Tao. Near the end of his life, old and in ill health, he would still maintain his daily t'ai chi training schedule and looked forward to doing Push hands with his students. In 1996, aged 90 (according to the Chinese calendar), Hong died. Hong is survived by his family, his dedicated disciples and the lasting legacy of his Practical Method.
Hong Junsheng
Hong Junsheng ( ) was born in 1907, Yuxian County ( ), Henan Province ( ). His grandfather was a government official in the Qing Court. At an early age, Hong's family moved to Beijing. Hong's family was affluent providing Hong with a leisurely life style and a classical Chinese education. When Hong was young, he was physically weak and often sick. By the time Hong was seventeen, Hong could no longer continue his education because of his illness. Still feeling weak and sick even after getting married at the age of 20, Hong decided to improve his health by becoming more physically active. He started by walking around the Beijing neighborhood. In 1930, Hong began to learn Wu-style t'ai chi ch'uan ( ) from Liu Musan ( ) to further improve his health. Liu, originally from Wuxi ( ) in Jiangsu Province ( ), was the director of the Telegram Service Department at Beijing Telegram Bureau and a well regarded protégé of Wu Chien-ch'uan (吴鉴泉, 1870–1942). The t'ai chi ch'uan world was in flux, just as Hong started his training with Liu. Before 1930, the public recognized t'ai chi ch'uan being taught by the Yang family and the Wu family but the arrival of Chen Fake and his promotion of Chen-style t'ai chi ch'uan would radically change this public perception. Chen Fake had moved from Chen village to Beijing to openly teach his family style. In accordance with Chinese martial arts tradition, Chen accepted and won all challenges. Chen's feats and exploits were widely reported in the press. Liu decided to investigate the validity of those claims. Liu invited Chen for a demonstration of the form as well as some friendly push hand competition. Liu was impressed by Chen's ability and decided to lead his students including Hong to study Chen-style t'ai chi ch'uan.
Cultural Revolution
The Cultural Revolution, formally the Great Proletarian Cultural Revolution, was a sociopolitical movement in China from 1966 until 1976. Launched by Mao Zedong, Chairman of the Communist Party of China (CPC), its stated goal was to preserve Chinese Communism by purging remnants of capitalist and traditional elements from Chinese society, and to re-impose Mao Zedong Thought (known outside China as "Maoism") as the dominant ideology in the CPC. The Revolution marked Mao's return to the central position of power in China after a period of less radical leadership to recover from the failures of the Great Leap Forward, which led to approximately 30 million deaths in the Great Chinese Famine only five years prior.
Cultural Revolution
Launching the movement in May 1966 with the help of the Cultural Revolution Group, Mao soon called on young people to "bombard the headquarters", and proclaimed that "to rebel is justified". In order to eliminate his rivals within the CPC and in schools, factories, and government institutions, Mao charged that bourgeois elements had infiltrated the government and society with the aim of restoring capitalism. He insisted that revisionists be removed through violent class struggle, to which China's youth, as well as urban workers, responded by forming Red Guards and "rebel groups" around the country. They would begin to hold struggle sessions regularly, and grab power from local governments and CPC branches, eventually establishing the revolutionary committees in 1967. The groups often split into rival factions, however, becoming involved in 'violent struggles' ( ), to which the People's Liberation Army had to be sent to restore order.

Question: In which period Hong Junsheng faced the turmoil of the Cultural Revolution?
Answer: from 1966 until 1976