Why did Vaslav Nijinsky's original Rite of Spring cause controversy in Paris?

The 1913 premiere of The Rite of Spring at the Théâtre des Champs-Élysées in Paris is remembered as one of the most scandalous events in the history of musical theatre. The controversy stemmed from a radical departure from classical ballet traditions, which shocked and polarized the audience.12

The primary reasons for the uproar included:

• Choreographic Innovation: Vaslav Nijinsky rejected the grace and verticality of classical ballet. Instead, he utilized harsh, "ugly" movements: dancers performed with their legs turned in, arms hanging heavily, and heads lolling to one side, arranged in massed, block-like groupings.3
• Musical Dissonance: Igor Stravinsky’s score challenged listeners with its barbaric rhythms, chaotic percussive momentum, and unresolved dissonances.12
• Audience Reaction: The performance provoked such intense arguments between those who supported the work and those who detested it that the resulting clamor made it impossible for the dancers to hear the orchestra.12

Ultimately, Nijinsky’s willingness to risk aesthetic "ugliness" in pursuit of an authentic, modern style created a profound shock that defined the work as a landmark of Modernism.13