Since the turn of the century, cultural connections between artists of the major European cities had become extremely active as they strove to create an art form equal to the high aspirations of modernism. Ideas were able to cross-fertilize by means of artist's books, exhibitions and manifestos so that many sources were open to experimentation and discussion, and formed a basis for a diversity of modes of abstraction. The following extract from "The World Backwards" gives some impression of the inter-connectedness of culture at the time: "David Burliuk's knowledge of modern art movements must have been extremely up-to-date, for the second Knave of Diamonds exhibition, held in January 1912 (in Moscow) included not only paintings sent from Munich, but some members of the German Die Brücke group, while from Paris came work by Robert Delaunay, Henri Matisse and Fernand Léger, as well as Picasso. During the Spring David Burliuk gave two lectures on cubism and planned a polemical publication, which the Knave of Diamonds was to finance. He went abroad in May and came back determined to rival the almanac "Der Blaue Reiter" which had emerged from the printers while he was in Germany".