In the late 1920s, three progressive and influential patrons of the arts, Miss Lillie P. Bliss, Mrs. Cornelius J. Sullivan, and Mrs. John D. Rockefeller, Jr., perceived a need to challenge the conservative policies of traditional museums and to establish an institution devoted exclusively to modern art. When The Museum of Modern Art was founded in 1929, its founding Director, Alfred H. Barr, Jr., intended the Museum to be dedicated to helping people understand and enjoy the visual arts of our time, and that it might provide New York with "the greatest museum of modern art in the world."

http://www.moma.org