Relation between History and Philosophy of Science

As the two different scopes of history and philosophy of science expanded in 1960’s, a question raised for philosophers and historians of science: “are history and philosophy of science related to each other?” “Are the two fields absolutely independent from each other?” “Or, are there an interrelation between the two?” After Kuhn who has been perhaps the first who has provided a reply for this question, Laudan is an important philosopher who has returned to this question. In this article, the author intends to describe the process in which Laudan has found the reply to his question concerning pragmatist philosophy. He divides history in two parts and believes that the history of science is the basis of philosophy of science so that philosophy of science should have the maximum overlap with the pure historical data.