Pivotal moments in the life of influential composer Igor Stravinsky include the premiere of "The Firebird" in 1910, which established him as a major figure in the music world. His collaboration with ballet impresario Sergei Diaghilev introduced innovative rhythmic structures and orchestration, revolutionizing the ballet genre. The premiere of "The Rite of Spring" in 1913 caused a sensation and has become iconic for its audacious approach to rhythm and melody. These milestones not only defined Stravinsky's career but also significantly influenced the trajectory of modern classical music.