Most histories of the Civil War era portray the struggle over slavery as a conflict that exclusively pitted North against South, free labor against slave labor, and black against white. In Freedom's Frontier, Stacey L. Smith examines the battle over slavery as it unfolded on the multiracial Pacific Coast. Despite its antislavery constitution, California was home to a dizzying array of bound and semibound labor systems: African American slavery, American Indian indenture, Latino and Chinese contract labor, and a brutal sex traffic in bound Indian and Chinese women. Using untapped...