At Kent State University, a demonstration with about 500 students was held on May 1 on the Commons (a grassy knoll in the center of campus traditionally used as a gathering place for rallies or protests). As the crowd dispersed to attend classes by 1 p.m., another rally was planned for May 4 to continue the protest of the expansion of the Vietnam War into Cambodia. There was widespread anger, and many protesters issued a call to "bring the war home". A group of history students buried a copy of the United States Constitution to symbolize that Nixon had killed it. A sign was put on a tree asking: "Why is the ROTC building still standing?"