Cambridge University is the oldest university in Britain and a world-famous institution. The school adopts college management and tutorial system teaching, and has a strong cultural and academic atmosphere. Cambridge University is a member of Russell University Group, a famous British university alliance, and coimbra group, a European university alliance. Oxford, Cambridge University and Oxford University are both the best universities in Britain, collectively known as "Oxford". Cambridge University was rated as the most influential university in the world in 20 15, and 92 Nobel Prize winners were produced by the university.