This article addresses the recent attempts to integrate evolutionary history in the US national narrative. Focussing on the cultural, legal, and scientific controversy over Kennewick Man, the ancient human remains discovered in Washington state in 1996, the article explores the narrative politics of American national belonging. Through a popular historical novel on Kennewick Man's life, the article further theorizes nostalgia as a narrative tool in imagining the evolutionary origins of the nation. The article argues that nostalgia produces a temporal dynamic that bridges the gap between national history and global prehistory, and that this dynamic is reinforced through cultural ideas of genetic knowledge. At the same time, prehistoric nostalgia renders problematic ideas of ethnic difference largely invisible.