The University of Chicago (U of C, Chicago or UChicago) is a private research university in Chicago, Illinois. Established in 1890, the University of Chicago include the College, various graduate programs, interdisciplinary committees organized into four academic research divisions and seven professional schools. Beyond the arts and sciences, Chicago is also known for its professional schools, including the Pritzker School of Medicine, University of Chicago Booth School of Business, School of Law, the School of Social Service Administration, School Harris Public Policy Studies, the Graham School of Continuing Liberal and Professional Studies and the School of Divinity. The university currently enrolls approximately 5,000 students in the school and about 15,000 students in general.University of Chicago scholars have played an important role in the development of various academic disciplines, including: the Chicago school of economics, the Chicago School of Sociology, the law and economics movement in legal analysis, school literary criticism of Chicago, the Chicago school of religion, and behaviorism school of political science. Chicago physics department helped develop first nuclear reaction in the world by the self-sufficient man under Stagg Field at the University done. [9] Chicago research activities have been helped by unique affiliations with world-renowned institutions such as the nearby National Laboratory Fermilab and Argonne, as well as the Marine Biological Laboratory. The university is also home to the University of Chicago Press, the largest university press in the United States. With an estimated completion date of 2020, Barack Obama Presidential Center will be based at the University of Chicago and include both the library and the offices of the president Obama Obama Foundation. Founded by the American Baptist Education Society with a donation of oil tycoon and the richest man in the history of John D.Rockefeller, the University of Chicago was incorporated in 1890; William Rainey Harper became the first president of the university in 1891, and the first classes were held in 1892.Both Harper and Robert Maynard Hutchins future president advocated Chicago curriculum based on theoretical and perennial issues rather than science applied and commercial use.Harper's vision in mind, the University of Chicago also became one of the 14 founding members of the Association of American Universities, an international organization of leading research universities in 1900. The University of Chicago is home to many former outstanding students. 89 Nobel laureateshave has joined the university as visiting professors, students, teachers and staff, the fourth most of any institution in the world. In addition, 49 students from Chicago include Rhodes scholars 9 Fields Medals, National Humanities Medals 13 13 billionaire graduates, and a lot of members of the United States Congress and the heads of state of countries around the world.