Complex sentence: Anselmo was born in Borgofranco d'Ivrea, Italy, in 1934, and participated in Arte Povera events starting in 1967, when displayed his work in the context of the exhibition "ConTempL'azione".
Split into simpler sentences: Anselmo was born in Borgofranco d'Ivrea, Italy, in 1934. He participated in Arte Povera events starting in 1967, when displayed his work in the context of the exhibition "ConTempL'azione".