The territory of Napa County, California, contains more than grapevines. The deepest roots belong to Wappo-speaking peoples, a group whose history has since been buried by the stories of Spanish colonizers, Californios (today's Latinos), African Americans, Chinese immigrants, and Euro Americans. Napa's history clearly is one of co-existence; yet, its schoolbooks tell a linear story that climaxes with the arrival of Euro Americans. In "This Land...