The University of London is an old and prestigious educational institution established in 1836 by Royal Charter that exists as a family of colleges and research bodies providing instruction to hundreds of thousands of students in London and through distance learning in 180 countries. It offers 3,700 qualifications through its 18 constituent colleges educating over 50,000 international students annually through its 150-year-old International Programme, and some of its earliest medical schools date back to the 1100s.