On the proposal of Jules Vuillemin, a chair in the department of Philosophy and History was created at the Collège de France to replace the late Jean Hyppolite. The title of the new chair was The history of systems of thought and it was created on November 30, 1969. Vuillemin put forward Michel Foucault to the general assembly of professors and Foucault was duly elected on 12 April 1970. He was 44 years old, and at the time was relatively unknown beyond the borders of his native France. As required by this appointment, he held a series of public lectures from 1970 until his death in 1984 (excepting a sabbatical year in 1976–1977). These lectures, in which he further advanced his work, were summarised from audio recordings and edited by Michel Senellart. They were subsequently translated into English and further edited by Graham Burchell and published posthumously by St Martin's Press. Source: Wikipedia (en)