What was the first strike of the Actor's Equity Association?

The first strike of the Actor's Equity Association (AEA) occurred in 1919, marking a pivotal moment in the history of labor relations within the performing arts. This strike was fundamentally motivated by the need for improved working conditions for actors, who at the time faced long hours, inadequate pay, and harsh working environments. The significance of the 1919 strike cannot be overstated, as it led to the establishment of important standards for the industry, including minimum salary requirements and better treatment on and off the stage.

While the other options mention related contexts, they do not specifically denote the first strike itself. The chorus equity formation and the formation of the American Federation of Musicians (AFM) pertain to different developments within the entertainment industry, but they are not directly linked to the AEA's specific action in 1919. Actors demanding better working conditions is too broad and does not capture the exact event that is being referenced, which was the organized strike led by AEA. Therefore, identifying the first strike in 1919 is the correct answer, highlighting a crucial moment that shaped the trajectory of labor rights in American theater.