Thomas S. Kuhn, 18 July 1922-17 June 1996, was the most influential philosopher of science in the 20th century. Kuhn studied physics, but after reading some of Aristotle's work took an interest in history of science. In 1956 he became interested in philosophy of science after working some time at UC Berkeley. There he discussed a draft of The Structure of Scientific Revolutions (1962), with a colleague. It is through this book, that Kuhn makes his most influential contribution(s) to science.