Fluxus Manifesto, 1963, by George Maciunas Poster to Festum Fluxorum Fluxus 1963. Fluxus was an international, interdisciplinary community of artists, composers, designers and poets during the 1960s and 1970s who engaged in experimental art performances which emphasized the artistic process over the finished product.[1][2] Fluxus is known for experimental contributions to different artistic media