I. Bernard Cohen
Born1 March 1914
Died20 June 2003(2003-06-20) (aged 89)
Alma materHarvard University (AB, PhD)
Scientific career
FieldsHistory of science
InstitutionsHarvard University
Doctoral students

I. Bernard Cohen[1] (1 March 1914 – 20 June 2003) was the Victor S. Thomas Professor of the history of science at Harvard University and the author of many books on the history of science and, in particular, Isaac Newton and Benjamin Franklin.

Cohen was a Harvard undergraduate ('37) and then a Harvard PhD student and protégé of George Sarton who was the founder of Isis and the History of Science Society. Cohen was the first American to receive a PhD in history of science and taught at Harvard from 1942 until his death. During his tenure, he developed Harvard's program in the history of science. He succeeded Sarton as editor of Isis (1952–1958) and, later, served as president of the Society (1961–1962). Cohen was also a president of the International Union of the History and Philosophy of Science.

Cohen was an internationally recognized Newton scholar; his interests were encyclopedic, ranging from science and public policy to the history of computers, with several decades as a special consultant for history of computing with IBM. Among his hundreds of publications were such major books as Franklin and Newton (1956), The Birth of a New Physics (1959), The Newtonian Revolution (1980), Revolution in Science (1985), Science and the Founding Fathers (1995), Howard Aiken: Portrait of a Computer Pioneer (1999), and his last book, The Triumph of Numbers (2005), not to mention two jointly authored contributions, the variorum edition and new English translation of Newton's Principia.

Cohen's April 1955 interview with Albert Einstein was the last Einstein gave before his death, in that same month. It was published that July in Scientific American, which also published Cohen's 1984 essay on Florence Nightingale.

In 1974, he was awarded the Sarton Medal by the History of Science Society. He was a member of the American Academy of Arts and Sciences[2] and the American Philosophical Society.[3] Many consider Cohen's most important work to be his 1999 translation, with the late Anne Whitman, of Newton's Principia. This 974-page work took Cohen over 15 years to fully translate.

Cohen supervised the doctoral dissertations of Lorraine Daston, Judith Grabiner, Kenneth Manning, Uta Merzbach, and Joan L. Richards.[4] Among Cohen's other students (and protégés) were the Islamic philosopher Seyyed Hosein Nasr; Tufts University professor George E. Smith; Bucknell University professor Martha Verbrugge; Allen G. Debus; and Jeremy Bernstein.

He died of a bone marrow disorder.[5][6]



  1. ^ Dauben, Joseph W.; Gleason, Mary Louise; Smith, George E. (March 2009), "Seven Decades of History of Science: I. Bernard Cohen (1914–2003), Second Editor of Isis", Isis, vol. 100, no. 1, pp. 4–35, doi:10.1086/597575, JSTOR 597575, 'my correct and full legal name is (and always has been) and is listed as, I. Bernard Cohen, which is the name recorded on my birth certificate, my passport, my FBI clearance, every copyright for some thirty or more books, and other official records': I. Bernard Cohen, letter dated 9 Mar. 1992
  2. ^ "I. Bernard Cohen". American Academy of Arts & Sciences. Retrieved 21 December 2021.
  3. ^ "APS Member History". search.amphilsoc.org. Retrieved 21 December 2021.
  4. ^ I. Bernard Cohen at the Mathematics Genealogy Project
  5. ^ Harvard University Gazette (June 20, 2003) History of Science Scholar I Bernard Cohen dies at 89: a Harvard man from undergraduate to emeritus, archived by Wayback Machine
  6. ^ Wolfgang Saxon (June 28, 2003) I. Bernard Cohen, 89, dies; Pioneer in History of Science, The New York Times