Stagg Field

Stagg Field. Originally constructed as the primary football stadium for the University of Chicago, the site achieved global scientific fame during World War II when it housed the first controlled, self-sustaining nuclear chain reaction. This pivotal experiment, conducted beneath its west stands, was a cornerstone of the top-secret Manhattan Project and marked the dawn of the Atomic Age. Following the war, the stadium was demolished, but its legacy is preserved through several memorials on the university's campus.

History

The stadium was named in honor of Amos Alonzo Stagg, the legendary football coach whose tenure with the Chicago Maroons spanned four decades and helped define the early era of college football. Funded by a generous donation from alumnus Charles L. Hutchinson, construction began in 1913 but was significantly delayed by World War I, finally opening in 1926. Designed to seat approximately 50,000 spectators, it was a prominent venue for major athletic events, including games against rivals like the Notre Dame Fighting Irish and the Illinois Fighting Illini. The university's decision to de-emphasize Big Ten Conference football under President Robert Maynard Hutchins led to the abandonment of the sport in 1939, leaving the massive structure underutilized and available for other purposes as global conflict loomed.

First self-sustaining nuclear reaction

With the United States entry into World War II, the stadium's west stands were repurposed for a clandestine scientific endeavor. Physicist Enrico Fermi, leading a team that included Leo Szilard, Walter Zinn, and Herbert L. Anderson, converted a squash court beneath the stands into a laboratory known as Chicago Pile-1. On December 2, 1942, they successfully initiated the first human-made, self-sustaining nuclear chain reaction, a critical breakthrough for the Manhattan Project. The experiment was overseen by project leaders like Arthur Compton and General Leslie Groves, with Eugene Wigner presenting Fermi with a bottle of Chianti to mark the occasion. This success directly enabled the subsequent development of nuclear reactors at sites like Hanford Site and Oak Ridge, Tennessee, and ultimately the creation of the atomic bomb.

Later use and demolition

After the war, the stadium saw limited use for university activities, including track meets and intramural sports, but its vast scale was largely redundant. The land it occupied became increasingly valuable for the expanding needs of the University of Chicago campus. In 1957, the decision was made to demolish the structure to make way for the construction of the Joseph Regenstein Library. The demolition marked the end of the physical arena but ensured the site would continue to serve the university's academic mission, transitioning from a venue of sport and secret science to one of open scholarship.

Legacy and memorials

The site's profound historical significance is commemorated by the Henry Moore sculpture *Nuclear Energy*, dedicated in 1967 on the 25th anniversary of the chain reaction. A nearby plaque designates the location as a National Historic Landmark. The university also maintains the adjacent William Eckhardt Research Center, and the legacy of the research continues at institutions like Argonne National Laboratory, which was founded by members of Fermi's team. The story of the experiment is a central exhibit at the Museum of Science and Industry in Chicago.

In popular culture

The events at the stadium have been depicted in numerous historical works, including the television drama *Manhattan* and documentaries such as *The Day After Trinity*. It is frequently referenced in literature about the Atomic Age, including books by Richard Rhodes and Laura Fermi. The site's dual identity as a sports coliseum and birthplace of the nuclear era has made it a compelling subject for episodes of series like *Modern Marvels* and in academic analyses of the Cold War.

Category:Sports venues in Chicago Category:Manhattan Project Category:University of Chicago Category:Demolished sports venues in Illinois Category:National Historic Landmarks in Illinois