The University of Illinois at Urbana–Champaign is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the University of Illinois system and was founded in 1867. The University of Illinois at Urbana–Champaign is a member of the Association of American Universities and is classified as a R1 Doctoral Research University under the Carnegie Classification of Institutions of Higher Education, which denotes the highest research activity. The university contains 16 schools and colleges and offers more than 150 undergraduate and over 100 graduate programs of study. As of October 2018, 30 Nobel laureates, 2 Turing Award winners, and 1 Fields medalist have been affiliated with the university as alumni, faculty members, or researchers.