Modern Tang Soo Do as a style was founded on November 9, 1945 in Seoul, Korea by Hwang Kee, with "Tang Soo Do" as the art, and the school or style being "Moo Duk Kwan." Tang Soo Do Moo Duk Kwan (As with almost all other styles) is a composite of many other disciplines: Tae Kyon (Kicking), Various Japanese styles (i.e.: Shotokan & Okinawan styles), and forms, hand techniques, and personal research by Hwang Kee, the systems founder.
Tang Soo Do has a varied and interested beginning starting out as Hwa Soo Do (Way of the Flowering Hand), then Tang Soo Do to gain acceptance in Japanese influenced Korea, and incorporated as Su Bahk Do.
As with many Korean arts, Tang Soo Do is said to have its roots in the Moo Yei Do bo Tong Ji, which is an ancient martial arts book found in Korea but written in Chinese. The book seems to be in three parts: the first general opening, Chinese Weapons , and the Kwon Bup.