The early 20th century was a period of prolific collecting for the museum, which acquired such works as a dragon tile relief from the Ishtar Gate of Babylon, an Egyptian relief of Mourning Women and a statuette of a Seated Scribe, Pieter Bruegel the Elder's "The Wedding Dance", "Saint Jerome in His Study" by Jan van Eyck and Giovanni Bellini's "Madonna and Child". Early purchases included French paintings by Claude Monet, Odilon Redon, Eugène Boudin, and Edgar Degas, as well as Old Masters including Gerard ter Borch, Peter Paul Rubens, Albrecht Dürer and Rembrandt van Rijn. The museum includes works by Vincent van Gogh including a self-portrait. The self-portrait of Vincent van Gogh and "The Window" by Henri Matisse were purchased in 1922 and were the first paintings by these two artists to enter an American public collection. Later important acquisitions include Hans Holbein the Younger's "Portrait of a Woman", James Abbott McNeill Whistler's "Nocturne in Black and Gold: The Falling Rocket", and works by Paul Cézanne, Eugène Delacroix, Auguste Rodin, Jean-Baptiste Carpeaux and François Rude. German Expressionism was embraced and collected early on by the DIA, with works by Heinrich Campendonk, Franz Marc, Karl Schmidt-Rottluff, Max Beckmann, Karl Hofer, Emil Nolde, Lovis Corinth, Ernst Barlach, Georg Kolbe, Wilhelm Lehmbruck, Erich Heckel, Ernst Ludwig Kirchner, Paula Modersohn-Becker, and Max Pechstein in the collection. Non-German artists in the Expressionist movement include Oskar Kokoschka, Wassily Kandinsky, Chaim Soutine and Edvard Munch. "The Nut Gatherers" by William-Adolphe Bouguereau is, by some accounts, the most popular painting in the collection.