Sylvanus Thayer

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Sylvanus Thayer

Sylvanus Thayer (1785-1872), American educator and engineer, put the U.S. Military Academy on a secure footing and promoted civil engineering as a collegiate course and profession.

Sylvanus Thayer was born on June 9, 1785, in Braintree, Mass. He entered Dartmouth College in 1803 but left in 1807 to attend the U.S. Military Academy at West Point. He graduated in 1808, was commissioned in the Corps of Engineers, and served in the War of 1812. In 1815 he was breveted a major and ordered to study European methods of educating military engineers so that he might help rescue West Point from incipient decay. The academy had a reputation for laxity in discipline and academic standards and suffered from uncertainty about whether to stress civilian or military studies.

After a year at the French École Polytechnique studying the curriculum and gathering a library, Thayer became superintendent at West Point in 1817. He accomplished sweeping reforms, setting new standards for admission, establishing minimum levels of academic proficiency, and creating a system to measure cadet progress. A commandant of cadets was appointed to regulate discipline and the military curriculum. Thayer established a board of visitors to inspect the academy annually to recommend adjustments in curriculum. He also established an academic board of faculty and administrators to develop academic policy.

Because West Point was required to provide professional officers for the Army, military subjects dominated the program. But Thayer also believed that the arts and sciences were important, as he wanted graduates to discharge the civilian offices of life with distinction. Courses in English and French, the natural and social sciences, mathematics, and ethics became staples. Refinements increased the civilian applications of West Point's curriculum. By 1831 the military engineering course was designated "civil engineering" and had lost most of its military overtones, encompassing the construction of "buildings and arches, canals, bridges, and other public works." Some graduates applied this in building the communications network to support America's developing industrial system.

Suspicion that the academy was an incubator of a military aristocracy led to tensions between Thayer and President Andrew Jackson's administration. Thayer was reassigned in 1833 as a colonel to supervise the construction of fortifications and harbor improvements in Massachusetts and Maine. He became commander of the Corps of Engineers in 1857 but took a sick leave in the next year. Thayer retired in 1863 as a brigadier general. In 1867 he endowed the Thayer School of Engineering at Dartmouth and spent his last years arranging its curriculum. He died in Braintree on Sept. 7, 1872. His will established the Thayer Academy.

Further Reading

There is no adequate biography of Thayer. R. Ernest Dupuy, Sylvanus Thayer: Father of Technology in the United States (1958), concise and complete, claims more for Thayer than it proves. Sidney Forman, West Point: A History of the United States Military Academy (1950), describes Thayer's career in a broader context. □

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Thayer, Sylvanus (1785–1872), army engineer and putative “Father of the Military Academy.”A native of Braintree, Massachusetts, Thayer attended Dartmouth for three years, then entered West Point, graduating in 1808. After coastal fortification service and participation in the War of 1812, he spent two years in Europe studying military institutions. He became superintendent of the U.S. Military Academy in 1817. Backed by Secretary of War John C. Calhoun, Thayer overhauled the academic and disciplinary systems. His reforms included organizing the corps of cadets into a battalion, establishing an academic board to oversee curricular matters, dividing classes into sections according to merit, and holding semiannual examinations. He also recruited several professors who achieved distinction, especially Dennis Hart Mahan. After a dispute with President Andrew Jackson Thayer, resigned his office in 1833 and returned to coastal fortification duty. Upon retirement, he established an engineering school at Dartmouth.

Having created what he considered a perfect structure at the military academy, Thayer resisted all subsequent attempts at modification, blasting other reformers with his vitriolic pen despite their contributions to the institution. In some respects he succeeded. Key elements of the Thayer system remain in force at West Point today.
[See also Academies, Service.]


Sidney B. Forman , West Point, A History of the United States Military Academy, 1950.
Joseph Ellis and and Robert Moore , School for Soldiers: West Point and the Profession of Arms, 1974.
James L. Morrison, Jr. , “The Best School”: West Point, 1833–1866, 1998.

James L. Morrison, Jr.

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Sylvanus Thayer, 1785–1872, American soldier and educator, b. Braintree, Mass., grad. Dartmouth, 1807, and West Point, 1808. During the War of 1812 he served as an engineer, and afterward he was sent to Europe to study military schools and fortifications. From 1817 to 1833 he served as superintendent at West Point, which he so thoroughly reorganized, placing it on a sound basis, that he is known as the "father of the Military Academy." He endowed an academy at Braintree and established and endowed (1867) the Thayer School of Civil Engineering at Dartmouth.