University of Oxford (also know as Oxford) is located in Oxford, UK. It is called "the city of dreams" by the 19th century poet Matthew Arnold. It is composed of 44 colleges and halls as well as the largest library system in Britain. The world's top public research universities adopt the Academy federation system. As a member of Russell university group, it is known as "Golden Triangle University" and "G5 super elite university". The specific founding time of Oxford University can not be tested, but it is clearly recorded in the archives that the earliest teaching time was 1096, and then it developed rapidly in 1167 because of the strong support of the British royal family.

University of St Andrews, founded in 1413, is a public university located in Scotland, England. The school was formally established after Pope Benedict XIII issued a papal edict to the Austin priests. It is the oldest university in Scotland and the oldest university in the English-speaking world after Oxford and Cambridge.

Durham University, located in Durham County, England in the northeast of the UK, is a public research university. It is a member of Russell university group, Coimbra group, the global alliance of higher research institutes of universities and N8 University Alliance. It is a top university in the UK. Because it has the same traditional college system as Cambridge University and Oxford University, it is collectively referred to as "doxbridge".