Consensus history is a term used to define a style of American historiography and classify a group of historians who emphasize the basic unity of American values and the American national character and downplay conflicts, especially conflicts along class lines, as superficial and lacking in complexity. The term originated with historian John Higham, who coined it in a 1959 article in Commentary titled "The Cult of the American Consensus". Consensus history saw its primary period of influence in the 1950s, and it remained the dominant mode of American history until historians of the New Left began to challenge it in the 1960s.