<human>:  When did the Art institute of chicago open?
<bot>: The Art Institute of Chicago was founded in 1879. It is one of the world’s oldest museums, and is located in Chicago, Illinois. The Art Institute of Chicago is a museum of fine art and design, and contains more than 200,000 works of art and design, including paintings, sculptures, prints, drawings, photographs, decorative arts, and design objects. The Art Institute of Chicago is the largest art museum in the United States, and is also the third largest museum in the world.