Viennese Actionism was a short and violent movement in 20th-century art. It can be regarded as part of the many independent efforts of the 1960s to develop "performance art" (Fluxus, happening, action painting, body art, etc.). Its main participants were Günter Brus, Otto Mühl, Hermann Nitsch, and Rudolf Schwarzkogler. As "actionists", they were active between 1960 and 1971. Most have continued their artistic work independently from the early 1970s onwards.