A loosely organized international group of avant-garde artists set up in Germany in 1962 and flourishing until the early 1970s. There was no common stylistic identity among the members, but they revived the spirit of Dada and were opposed to artistic tradition and everything that savoured of professionalism in the arts. Their activities were mainly concerned with happenings (usually called Aktions in Germany), street art, and so on. Fluxus festivals were held in various European cities (including Amsterdam, Copenhagen, Düsseldorf, London, and Paris), and also in New York, which became the centre of the movement's activities. The most famous artist involved with Fluxus was Joseph Beuys; among the others were the Japanese-born American Yoko Ono (b1933), and the German Wolf Vostell (1932–98). The group's chief co-ordinator and editor of its many publications was the Lithuanian-born American George Maciunas (1931–78), who coined its name (Lat., fluxus: ‘flowing)’, suggesting a state of continuous change.