In his review of "Complicity: How the North Promoted, Prolonged, and Profited From Slavery" by Anne Farrow, Joel Lang and Jenifer Frank, the historian Ira Berlin wrote, "Slavery in the North, like its counterpart in the South, was a brutal, violent relationship that fostered white supremacy. "Complicitys authors shred the notion, famously advanced by the Yale historian U.B. Phillips, that the central theme of Southern history was the region's desire to remain a white man's country. Phillips was not so much wrong about the centrality of white supremacy to the South as blind to its presence in the North."