Wilson Shihan founded Shin Nagare Karate at his dojo on Green Mountain in Huntsville, Alabama in the 1980s. The style evolved as an outgrowth of traditional Shotokan Karate, but with a heavy influence from American kickboxing that was popular at the time. Wilson Shihan had studied jujitsu since the 1940s. He incorporated elements of his jujitsu training into Shin Nagare. As with many other mixed styles of martial arts that came out of the 1980s and 1990s, Shin Nagare is thus a full-range martial art and a complete fighting system.