What are 3 events that were major to John Cage?

Three major events in John Cage's life include the premiere of his groundbreaking composition "4'33"" in 1952, which challenged conventional notions of music by emphasizing silence and environmental sounds. The 1948 publication of his essay "The Future of Music: Credo" articulated his radical ideas about chance and indeterminacy in music, influencing generations of composers. Additionally, his involvement with the avant-garde art community, particularly through collaborations with artists like Merce Cunningham, transformed both music and performance art.