In Star Trek: Nemesis, we see android Data (played by Brent Spiner) use the Vulcan nerve pinch to take out a guard.
The first time the Vulcan language is spoken laid the groundwork for Star Trek to develop Vulcan words and rituals in later shows & movies.
It first appeared in Star Trek fanzines in the late 60s and early ... It was also established as the Vulcan art form of examining the contrasting and compatible duality of a subject.