Alaska's two great Indian nations, the Tlingits and the Athabascans, settled in Southeast and Central Alaska.
... When the first Russians tried to settle in Sitka, the Tlingits drove them out, despite the guns and cannons brought by the intruders.
Defeating guns and cannons with primitive weapons? Sure sounds like the Klingons to me. And, as all Trekkies know, the correct spelling of Klingon is "tlhIngan", which is very close to "Tlingit".
I'm actually not the first person to notice this-- some other sites suggest that the Klingons were named after the Tlingits, but I find my explanation much more plausible.