The University of Oxford (Oxford for short), located in Oxford, England, is the world's leading public research University, using college federalism. The exact date of the university's founding is unknown, but the earliest documented date for teaching is 1096, and it grew rapidly in 1167, thanks to the support of the English royal family. The University of Oxford is the oldest university in the English-speaking world and the second oldest surviving institution of higher education in the world. The university has produced a number of epoch-leading scientific masters and trained a large number of epoch-making art masters and heads of state, including 28 British prime ministers and dozens of heads of state and political and business leaders around the world. The University of Oxford has a lofty academic status and extensive influence in mathematics, physics, medicine, law, business and other fields, and is recognized as one of the world's top institutions of higher education. Since 1902, Oxford University has also established Rhodes Scholarships for undergraduates from all over the world. As of March 2019, there are 72 Nobel Prize winners (ninth in the world), 3 Fields Medal winners (20th in the world) and 6 Turing Prize winners (ninth in the world) among Oxford's alumni, professors and researchers. The University of Oxford is ranked 1st in the world in 2019-20 by the QS World University Rankings, 4th in the World in 2020USNews World University Rankings, 5th in the world in 2019 Academic Rankings, 7th in the World in 2019 Times Higher Education World University Reputation Rankings. In particular, THE University of Oxford has been ranked number one in THE world for THE fourth consecutive year in 2017-20 in THE World University Rankings.