Celebrated Historian Altered Understanding of Slavery

Kenneth M. Stampp, 96, a historian who helped transform the study of slavery in the United States by exposing plantation owners as practical businessmen, not romantics defending a noble heritage, died of heart ailments July 10 at a hospital in Oakland, Calif. He had vascular dementia.

His death was confirmed by the University of California at Berkeley, where he taught from 1946 until retiring in 1983.

Dr. Stampp denied having the burgeoning civil rights movement in mind when he researched and wrote "The Peculiar Institution" (1956), which powerfully challenged the way slavery was presented in history texts. But the impact of the book was undeniably linked to the changing era in which it appeared.

Leon Litwack, a Pulitzer Prize-winning historian who studied under Dr. Stampp and called him "one of the most important historians" of his generation, said that as late as the 1940s, many eminent historians of the South depicted slavery as a largely benign system.

As those writers saw it, blacks could be said to have prospered under the watch of benevolent slaveowners. Still others, Litwack said, described slavery as an enterprise that was never especially profitable and one that might have dissolved on its own had the Civil War not interceded.

Dr. Stampp was among the first mainstream writers to devastate that comforting "magnolia-blossom interpretation of the plantation," Litwack said.

Dr. Stampp documented the records of smaller slaveowning farms as well as the largest plantations to create a portrait of a society determined at all costs, including rebellion, to keep its prosperous but morally repugnant way of life.

"After the necessary adjustments are made in costs and total income, surviving business records reveal that during the last antebellum decade slavery was still justifying itself economically," Dr. Stampp wrote in "The Peculiar Institution." "During the Fifties returns of 7 to 10 percent on capital investments were common. Even in the upper South slavery was amply rewarding those who took pains to preserve or restore the fertility of their soil and who directed their enterprises with reasonable efficiency."

Southern historian John Bettersworth, reviewing the book for the New York Times, called it "American historical scholarship at its lucid best."

Among Dr. Stampp's other prominent books was "The Era of Reconstruction" (1965), which disputed the prevailing idea that "radical Republicans" from the North were determined to humiliate the South after the Civil War and enfranchise blacks solely out of political self-interest.

Dr. Stampp's research showed those "radicals" primarily as well-intended, sometimes flawed men trying to make democracy work within a political system and culture that had never been known for its pristine ethics. As for blacks joining the Republican Party en masse, it was less a GOP conspiracy against the Democratic South, Dr. Stampp wrote, than former slaves facing a practical choice "between a party that gave them civil and political rights and a party whose stock-in-trade was racist demagoguery."

With the book, Time magazine wrote, Dr. Stampp became "the most provocative" of historical revisionists re-examining the postwar era.