The Royal College of Surgeons in Ireland (RCSI), (Irish: Coláiste Ríoga na Máinleá in Éirinn) is a Dublin-based medical institution, situated on St. Stephen's Green. The college is one of the five Recognised Colleges of the National University of Ireland. The college dates back to 1784 and at present incorporates schools of medicine, physiotherapy, pharmacy and nursing, providing both undergraduate and postgraduate levels of medical education. Among medical institutions outside Ireland, the use of the term "Royal College" currently indicates an oversight body for postgraduate medical education: the RCSI performs such a function, but is also unique in still having its own undergraduate medical school. The RCSI is a sister institute of the royal surgical colleges of the United Kingdom (London, Glasgow and Edinburgh). Since medieval times, the practice of surgery was licensed by the Barber-Surgeons' Guild, also known at the time as the Guild of St. Mary Magdalene. The guild chapel was in Christchurch. Guild membership at that time was obtained by a 3 year apprenticeship followed by 2 years as a master.