Born in the United States, Allan Kaprow was a central figure in the development of avant-garde art during the mid-20th century. He studied under Hans Hofmann and later at Columbia University, where he began to move away from traditional painting toward the creation of immersive, site-specific environments.

Kaprow is best known for inventing the 'Happening,' a form of performance art that emphasized spontaneity and audience participation. His work often utilized found materials and unconventional spaces, challenging the boundaries of the gallery setting. Throughout his career, he produced approximately 200 Happenings, which laid the theoretical and practical groundwork for later movements including Fluxus and installation art.

In his later years, Kaprow transitioned his practice toward what he termed 'Activities.' These were more intimate, often private performances that focused on the study of mundane human behaviors and daily routines. His influence remains foundational to contemporary performance and conceptual art practices.