Complex sentence: The "Destruction in Art Symposium" in London, 1966, marked the first encounter between members of Fluxus and Actionists and was a landmark of international recognition for the work of Brus, Mühl and Nitsch.
Split into simpler sentences: The "Destruction in Art Symposium", held in London in 1966, marked the first encounter between members of Fluxus and Actionists. It was a landmark of international recognition for the work of Brus, Mühl and Nitsch.