Final answer:
The Armory Show of 1913 introduced the American public to modern art and reflected the era's atmosphere of political and social activism. It showcased avant-garde European art styles and inspired American artists to experiment and create their own artistic language.
Step-by-step explanation:
The Armory Show of 1913 was a significant art exhibition that introduced the American public to modern art and reflected the era's atmosphere of political and social activism.
Firstly, the show displayed about 1,300 works by over 300 artists with the goal of bringing the best avant-garde European art to an American audience. It introduced New Yorkers accustomed to the naturalistic art of American Realism to the styles of European avant-garde artists like Impressionism, Fauvism, and Cubism, which were new and innovative at the time.
Secondly, the Armory Show reflected the era's atmosphere of political and social activism. It served as a catalyst for American artists to create their own artistic language and experiment more. The show challenged traditional artistic conventions and sparked conversations about what art could be.