By 1903 the impetus of Symbolism had been expended and a new and enigmatic mood was forming. The new attitude drew on a vein that was comic, poetic, and fantastic, exploring an irrational quality akin to humour inherent in the creative process itself, as well as on a reserve of ironic detachment. The new painters drew strength from unexpected sources. The work of Henri Rousseau, a former clerk in the Paris municipal customs service who was known as “Le Douanier” accordingly and who had exhibited at the Indépendants since 1886, attracted attention. The apparent innocence of his pictures gave them a kind of imaginative grandeur that seemed beyond the reach of any art founded on sophistication.

The art of supposedly primitive peoples had a special appeal in the early years of the 20th century. Gauguin, who had made direct contact with it in his last years, proved prophetic not only in the forms he adopted but in the spirit of his approach. Maurice de Vlaminck and André Derain, who met in 1900, evolved a style together based on crude statements of strong colours. Matisse had been moving more circumspectly in the same direction. The apparent ferocity of the works that the three exhibited in 1905 earned them the nickname of the Fauves (“Wild Beasts”). It appears that Matisse was responsible for introducing Pablo Picasso to African sculpture. Picasso had already shown signs of dissatisfaction with existing canons; his use of fin de siècle styles in his earliest works has a quality close to irony. Primitive art, both African and Iberian, provided him with an austerity and a detachment that led after 1906 to a radical metamorphosis of the image and style hitherto habitual in European art. In 1904 Ernst Ludwig Kirchner, at Dresden, discovered the art of the Pacific Islands as well as African art. His first reflection of the primitive spirit was parallel to that of the Fauves and may have depended on them, if only partially.

The idea of art, first and last, as a matter of expression (in contrast to Impressionism) was common to Germany and France in the first decade of the 20th century; it appeared in Matisse’s Notes of a Painter, published in 1908. Matisse, in fact, hardly differentiated expression from decoration; his ideal of art as “something like a good armchair in which to rest” explicitly excluded the distortion and disquiet that earned the style of Kirchner and Die Brücke (“The Bridge”) group, which had been founded in 1905, the label of Expressionism. The worldly subjects of Kirchner represented only one aspect of the group; the earthy Primitivism of Emil Nolde and the emphatic pictorial rhetoric of Karl Schmidt-Rottluff were more typical. Both Nolde and Max Pechstein (another member of the group) traveled to the Pacific. The development of the Austrian Oskar Kokoschka, who was influenced by members of Die Brücke, spanned the first two-thirds of the 20th century; the tempestuous emotion of his finest pictures places them among the masterpieces of painting of the German-speaking world in his time.

The transformation of painting after 1907 was particularly apparent in works executed in Germany. Wassily Kandinsky had come to Munich from Moscow at the age of 30 in 1896. His earliest mature works were painted in a jewel-like fairy-tale Cloisonniste style. He later told how, one evening in his studio, he came upon “an indescribably beautiful picture, drenched with an inner glowing…of which I saw nothing but forms and colours” (from R.L. Herbert [ed.], Modern Artists on Art, 1965). It was one of his own works standing on its side so that its content was incomprehensible. Kandinsky’s first nonfigurative watercolour was painted in 1910, and in the same year he wrote much of Concerning the Spiritual in Art, which converted the aesthetic doctrines of Goethe to the purposes of the new art. The series Improvisations that followed preserved reminiscences of figuration, made illegible by the looseness of the pictorial structure; their diffuse and amorphous consistency had little connection with the main objectives of painting at the time. In the first decade of the 20th century, the idea of painting implied by Post-Impressionism and that of a reasoned structure analogous to the structure of nature, if not to appearances, were far from exhausted. The influence of Kandinsky’s Improvisations from 1911 onward, though delayed, was nonetheless great and pointed in a direction that abstract painting was to take 40 years later.

The Munich group Der Blaue Reiter (“The Blue Rider”), named after one of Kandinsky’s earlier pictures, was formed in 1911 to represent the new tendencies when Kandinsky and Franz Marc withdrew from the heterogeneous Neue Künstlervereinigung (“New Artists Association”). The group soon became, in its turn, a broadly based assembly of the international avant-garde artists of the day, although the stylizations of Marc himself now appear commonplace. Among the early members of the group, the Russian Alexey von Jawlensky evolved a structured form of Expressionism that culminated in the 1930s in a series of abstractions of a head, but the chief importance of the group was as a stage in the development of the Swiss painter Paul Klee.