The Cɛbaun Kīn, literally "Soul People", were a Neolithic society who lived around the Northeast Bay of Tuysafa sometime before the Mediundic migration. They were a Primundic people, and lived far from the future sphere of the Ndak Ta and similar peoples. They spoke Proto-Northeastern.
Similar to the Native Americans of the Pacific Northwest, the Cɛbaun Kīn were blessed with a natural environment that blunted the hardships of their relatively low technology. They faced long, snowy winters, but food supplies were sufficiently abundant and easy to gather that there was plenty of leisure for culture to flourish in--and so it did. Though they were preliterate, the tradition of ɤ̄blka sŋɛptaun, "word-hoarders", ensured that a varied and reasonably stable canon of teaching stories, songs and folktales knit the culture together.
The Cɛbaun Kīn tended small mixed gardens and kept a number of domesticated animals to supplement hunting, fishing, and foraging. They could work soft metals such as gold by hammering, though that very softness meant that metal was a decorative substance; their tools were of knapped flint.
Wealth among them consisted primarily--and unusually--of textiles. Weaving developed very early, and the "classical" period of the culture was rife with cloth, woven, felted and even knitted. A number of local plants and animals produced vivid dyes and at least one species of mollusc was harvested to extinction in the Great Bay. They even embroidered, though without metal needles the work was necessarily somewhat coarse. No Cɛbaun Kīn household was complete without the k̇ocsrɔis, the warp-weighted greatloom, and it was a mark of idleness to not be spinning any time your hands weren't busy with other things.