Julius W. Pratt

Julius William Pratt (1888–1983) was a United States historian who specialized in foreign relations and imperialism. Noted for his studies of the origins of the War of 1812 and the war with Spain in 1898, he also wrote a two-volume biography of Cordell Hull. He was the historian who rediscovered John L. O'Sullivan and his role in originating the idea of Manifest Destiny.

The frontier and colonial nature of Pratt's family background is noteworthy. Pratt was the son of William McLain Pratt and Sophie Rand. Originally from Meriden, Connecticut, William had fought in the Civil War and married Sophie in 1869. Following the death of his father, Julius, William and Sophie moved from Connecticut to Blue Earth County, Minnesota, near Mankato along the Minnesota River Valley, in 1870, to work in the lumber industry. Economic conditions forced William to move to South Dakota while the family remained in Minnesota, but in 1886 Sophie and daughter Alice (two others had perished in Minnesota) moved to Little Elk Canyon, 25 miles (40 km) from Deadwood, South Dakota and 15 miles (24 km) from Rapid City, South Dakota. In 1888, Julius W. was born. In 1900 the family moved to the Blue Ridge region of North Carolina. Pratt's older sister Alice Day acquired her own reputation as a writer, teacher, and homesteader in Oregon.

He attended Davidson College and graduated in 1908. Pratt would go on to the University of Chicago for graduate work, where he studied under the direction of William E. Dodd. He received his Ph.D in 1924. Pratt taught English at the United States Naval Academy from 1919 to 1924, before moving to Rutgers University for two years. In 1926 he left Rutgers for the University of Buffalo, where he was the inaugural Emanuel Boasberg Professor of History.Richard Hofstadter, who was an undergraduate there, identified Pratt as his most important teacher at Buffalo.

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