The Armory Show opens in New York City, displaying works of artists who are to become some of the most influential painters of the early 20th century.

The 1913 Armory Show, also known as the International Exhibition of Modern Art, was organized by the Association of American Painters and Sculptors. It was the first large exhibition of modern art in America, as well as one of the many exhibitions that have been held in the vast spaces of U.S. National Guard armories.

February 17 is the 48th day of the year in the Gregorian calendar; 317 days remain until the end of the year.