 Complete the following phrase:  Modern artworks were purged from German museums. Over 5,000 works were initially seized, including 1,052 by Nolde, 759 by Heckel, 639 by Ernst Ludwig Kirchner and 508 by Max Beckmann, as well as smaller numbers of works by such artists as Alexander Archipenko, Marc Chagall, James Ensor, Henri Matisse, Jean Metzinger, Pablo Picasso and Vincent van Gogh. These became the material for a defamatory exhibit, 