Term first formally used by the American artist Allan Kaprow for his 18 Happenings in 6 Parts, presented in early October 1959 at the Reuben Gallery, New York City, as the inaugurating event for that space. (Informal “happening-like” experiments had been presented by Kaprow in April 1958 at Rutgers University, New Brunswick, NJ, and at the Reuben Gallery in a pre-opening piece called Intermission [June 1959].) Through 1960, the artists pioneering the Happenings form were: Kaprow, Robert Whitman (b 1935), Claes Oldenburg, Simone Forti, Red Grooms, Al Hansen and Jim Dine. Happenings appeared at experimental downtown spaces such as Groom’s “Delancey Street Museum” (his studio on the lower East Side), the Judson Church (on Washington Square) and the Reuben Gallery, as well as in New Jersey, at George Segal’s farm, and on the campus of Rutgers University, New Brunswick, where Kaprow was teaching and Whitman was a student. According to Whitman, when Kaprow named ...