Fluxus was an international, interdisciplinary community of artists, composers, designers, and poets during the 1960s and 1970s who, inspired by John Cage, engaged in experimental art performances which emphasized the artistic tradition of chance-based process over the finished product. Fluxus is known for experimental contributions to different artistic media and disciplines and for generating new art forms. These art forms include intermedia, a term coined by Fluxus artist Dick Higgins; conceptual art, first developed by Henry Flynt, an artist contentiously associated with Fluxus; and video art, first pioneered by Nam June Paik and Wolf Vostell. Dutch gallerist and art critic Harry Ruhé describes Fluxus as "the most radical and experimental art movement of the sixties".