
Diego Rivera. May Day, Moscow. 1928. Watercolor and pencil on graph paper, 4 1/8 x 6 3/8″ (10.5 x 16.2 cm). Gift of Abby Aldrich Rockefeller
May Day plays an interesting role in The Museum of Modern Art’s history, as the occasion brought Jere Abbott and Alfred H. Barr, Jr., who would become MoMA’s first associate director and director respectively, together with Diego Rivera for the first time.