Northwestern University (NU) is a private research university located in Evanston, Illinois, United States. Established in 1851, it holds the distinction of being the oldest chartered university in Illinois. The university was founded through the efforts of nine prominent Chicago businessmen, Methodist leaders, and attorneys who envisioned an institution to serve the Northwest Territory. Initially affiliated with the Methodist Episcopal Church, Northwestern transitioned to a non-sectarian status over time. By 1900, it had grown to become the third-largest university in the United States, following the University of Michigan and Harvard University. Northwestern played a key role in higher education expansion, becoming a founding member of the Big Ten Conference in 1896 and joining the Association of American Universities in 1917. The university's campus features historic buildings like University Hall, completed in 1869, and it has a rich tradition of academic excellence, research innovation, and student life, including literary societies and athletic traditions such as the 'wildcat growl' at football games.

Northwestern University has a storied history marked by significant developments and challenges. Its origins trace back to a meeting on May 31, 1850, leading to the Illinois General Assembly granting a charter on January 28, 1851, to the Trustees of the North-Western University. Despite early obstacles like limited funds and the Civil War, the university expanded, integrating institutions such as the Union College of Law in 1891, which became the Northwestern Pritzker School of Law. In the 20th century, it navigated financial difficulties during the Great Depression, including a proposed merger with the University of Chicago in 1933 that was ultimately rejected. Technological advancements were evident with the acquisition of an IBM 709 computer in 1961 for research and teaching. The university's alumni have founded prominent companies, including Groupon, The Blackstone Group, Booz Allen Hamilton, U.S. Steel, and Accenture, underscoring its influence in business and entrepreneurship.

Today, Northwestern University continues to be a leading academic institution, emphasizing breakthrough research, diverse faculty, and a vibrant student experience. It maintains strong ties with the city of Evanston, where it was instrumental in the community's development, though relations have included historical tensions, such as student riots in 1926. The university's official seal dates to 1851, reflecting its enduring legacy. Northwestern operates multiple campuses, with its primary location in Evanston, and remains committed to shaping future generations through education and innovation.