The Armory Show of 1913 was the mainstream debut of modernist art -- both European and American -- to New York City audiences. Galleries had previously devoted themselves to the great European masters, antiquity and American landscapes as a way to influence the taste of a growing city. But even though vanguards like Alfred Stieglitz debuted artists like Picasso and Cezanne into his Fifth Avenue gallery, those names were still barely known to the average New Yorker.

The Armory Show, located at the 69th Regiment Armory on Lexington Avenue, changed all that, but not without controversy. When the exhibition debuted on February 17, 1913, writers and art critics exploded in shock and outrage.

This is the story of an important moment in American art history, but also a moment in New York City pop culture, an event that shook society and challenged its beliefs about taste and beauty -- not a small thing in the waning years of the Gilded Age.