The University of Cambridge, a world-leading public research university, adopts the federal system of colleges and is located in Cambridge, England. It is also known as Oxbridge with Oxford University. It is a member of the Russell University Group and is known as the "Golden Triangle School" and "G5 Super Elite University". The University of Cambridge is the second oldest university in the English-speaking world, formerly an association of scholars established in 1209. Cambridge University has a high academic status and extensive influence in many fields, and is recognized as one of the top higher education institutions in the world today. It is a member of the Russell University Group in the United Kingdom, the prestigious Golden Triangle University, the International Applied Science and Technology Development Cooperation Network and the Cambridge University Medical Partnership Alliance, and has bred the technology gathering place "Silicon Fen". The University of Cambridge is actually just a loosely organized consortium of colleges, with a high degree of autonomy, but all abide by the unified Cambridge University Charter, which is drafted and adopted by the university's legislature and revised every year. The University of Cambridge is only responsible for examinations and degree issuance, and the specific standards for enrolling students are determined by the colleges themselves and recruit students by themselves. Cambridge University's 31 colleges are scattered in a small town with only about 100,000 people. These colleges were built in different eras, and the earliest ones have a history of seven or eight hundred years. As unique as their buildings are.