The University of Oxford is a collegiate research university in Oxford, Oxfordshire, England. There is evidence of teaching as early as 1096, making it the oldest university in the English-speaking world and the world’s second-oldest university in continuous operation. Oxford operates the world’s oldest university museum, as well as the largest university press in the world and the largest academic library system nationwide. Oxford has educated a wide range of notable alumni, including 28 prime ministers of the United Kingdom, 160 Olympic medals winners, 72 Nobel Prize laureates, 3 Fields Medalists, and 6 Turing Award winners. University of Oxford is ranked as the best university in the world by Times Higher Education World University Rankings and as the 5th best university in the world by QS World University Rankings.