Orius
Unrepentant DM Supremacist
Hand of Evil said:
This is from the Making of Star Trek by Gene came out in the late 60/early 70s.
The Klingons were a warrior/slave race to an unknown race that disappearred. The Klingons took over their worlds which had other races (also slaves) that performed task for them. Klingon ships were template ships, no new tech for a long period of time (that was one of the reasons for working with the Romalans in ST:OS.
Well, I don't know how much of this is "canon", but that unknown race might be the Hur'q, a race of invaders that occupied the Klingon homeworld or something several centuries after the death of Kahless. They were only mentioned briefly in the DS9 episode "The Sword of Kahless".