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Rhys Llywelyn Isaac (20 November 1937 – 6 October 2010)^[1] was a South African-born Australian historian of American history who also worked in the United States.

Isaac and his twin brotherGlynn were born inCape Town, South Africa, to William Edwyn Isaac andFrances Margaret Leighton, both professional botanists.

Isaac earned his B.A. and M.A. degrees from theUniversity of Cape Town. In 1959 he was the Cape Province Rhodes Scholar atBalliol College (Oxford), earning his Ph.D. in 1962.^[2]

In 1963 Isaac emigrated toAustralia, where he taught at theUniversity of Melbourne, and later atLa Trobe University (1971–91), where he was emeritus professor of American history. In 1975 he was a distinguished visiting professor of early American history at theCollege of William & Mary inWilliamsburg, Virginia.

Isaac won the 1983Pulitzer Prize for History for his bookThe Transformation of Virginia, 1740-1790 (1982), becoming the first and only Australian historian to win aPulitzer Prize.

In 2004 Isaac publishedLandon Carter's Uneasy Kingdom: Revolution and Rebellion on a Virginia Plantation, which made use of the exemplary diary of a Virginian landholder and member of theHouse of Burgesses.

Isaac died at his home inBlairgowrie, Victoria, Australia, on 6 October 2010, aged 72, from cancer.^[3]

• 1937 births
• People from Cape Town
• 2010 deaths
• 20th-century South African historians
• Colony of Virginia
• Historians of the American Revolution
• Historians of the Southern United States
• History of the Thirteen Colonies
• Historians of the United States
• Academic staff of La Trobe University
• College of William & Mary faculty
• Pulitzer Prize for History winners
• Deaths from cancer in Victoria (state)
• 20th-century Australian historians
• 21st-century American historians
• 21st-century American male writers
• American male non-fiction writers

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