Iron Thread form was created by Tid Kiu Sam (Iron Bridge III), one of the best martial artists in the history of China. His real name was Leung Kwan (1813-1886). He was one of the famous Ten Tigers of Guangdong. Tid Kiu Sam was born in the town of Nanghai, Guangdong province. He, the third child in the family, became a disciple of a monk from the Shaolin Temple, Gwok Yan. Gwok Yan was one of the greatest masters of the Southern Shaolin Hung Gar Kuen school. He was known along the whole length of the Yangtse river. Through the years Tid Kiu Sam passed his knowledge down to one of his students, Lam Fook Sing. Some time later Lam Fook Sing taught Wong Fei Hung (1847-1924) and the latter Wong Fei Hung taught Lam Sai Wing (1860-1943).