Season 4 Episode 8
Episode aired november 23, 1999
on thanksgiving, buffy encounters the spirit of a native american warrior whose people were wiped out by settlers.
the actual chumash people was entrenched along the california central coast - including around modern santa barbara, a probable real-life counterpart to sunnydale - and numbered as many as 20,000 people before contact with europeans. the tribe survives today as the santa ynez band of chumash, which has u.s. recognition as a native american tribe and controls a reservation and casino in santa ynez, california.