Yim Wing Chun later married Leung Bok-Chau, a salt merchant, who named the art "Wing Chun Kuen" (Wing Chun Fist) after her.[1][2] Lee (1972) attributes significant development of the art to Yim Wing Chun, crediting her with the invention of the Chi Sao (sticking hands) exercise.[5] From there, the art passed through several men's hands before coming to Ip Man.[4]