The University of Illinois System is a public university system in the state of Illinois, consisting of three main campuses: University of Illinois at Urbana-Champaign, University of Illinois at Chicago, and University of Illinois at Springfield. Established in 1867, it serves over 90,000 students and offers a wide range of undergraduate and graduate programs across various fields. The system is known for its strong emphasis on research, innovation, and community engagement. It is recognized for its contributions to education, technology, and public service, making it a significant institution in the higher education landscape of the United States.