The college contributed to drug standards, disease classification, medical publication, lectures, and advice to government. Its library, collections, and records preserved knowledge as well as the institutional memory of who counted as a physician.
The content of authority changed too. Classical learning and Galenic theory gradually gave way to anatomy, chemistry, pathology, clinical observation, and laboratory science. Institutional continuity therefore depended on revising the very expertise that the college certified.
Access remained narrow. University requirements and the classical languages favoured men with particular educations and resources. The college denied Elizabeth Garrett Anderson permission to seek its licence in 1864 and did not open its examinations to women until 1909. Women became eligible for fellowship later, with the first woman fellow elected in the 1930s.
Such barriers were not incidental to professionalisation. Exclusion helped make membership scarce and prestigious, even as people outside the college continued to provide much everyday care. Regulation therefore needs to be assessed through both safety and access.
The college's role changed as universities, Parliament, the General Medical Council, hospitals, specialist societies, and the National Health Service reorganised British medicine. It remained influential through examinations, postgraduate education, standards, policy, and professional representation rather than retaining its original monopoly.