An interactive event created by anartist. Happenings typically involved elements of audience participation together withlight, sound, slideprojections and/or other sensory stimuli. The term was first used by the American artist Allan Kaprow (1927-2006) in the title of his work 18 Happenings in 6 Parts which took place in October, 1959 at the Reuben Gallery, New York. Other artists who created happenings in the 1960s include Claes Oldenberg, Jim Dine and Red Grooms. (Terry, 2022)