The College of Physicians of Philadelphia is the oldest private medical society in the United States. Founded in 1787 by 24 Philadelphia physicians "to advance the Science of Medicine, and thereby lessen human misery, by investigating the diseases and remedies which are peculiar to our country" and to promote "order and uniformity in the practice of Physick," it has made important contributions to medical education and research. The College hosts the Mütter Museum, a gallery of 19th-century specimens, teaching models, instruments, and photographs, as well as the Historical Medical Library, which is one of the country's oldest medical libraries. The College of Physicians of Philadelphia Building, designed by the firm of Cope & Stewardson and built in 1909, was designated a U.S. National Historic Landmark in October, 2008. It was also then listed on the National Register of Historic Places.
