History of painting world with "wild", multi-colored, expressive, landscapes and figure paintings that the critics called Fauvism. Henri Matisse's second version of "The Dance" signifies a key point in his career and in the development of modern painting. It reflects Matisse's incipient fascination with primitive art: the intense warm colors against the cool blue-green background and the rhythmical succession of dancing nudes convey the feelings of emotional liberation and hedonism. Pablo Picasso made his first cubist paintings based on Cézanne's idea that all depiction of nature can be reduced to three solids: cube, sphere and cone. With the painting Les Demoiselles d'Avignon 1907,
Pablo Picasso by which time the artist had started to sign his work "Picasso"; before he had signed "Pablo Ruiz y Picasso". Picasso's Blue Period (1901–1904), characterized by sombre paintings rendered in shades of blue and blue-green, only occasionally warmed by other colours, began either in Spain in early 1901, or in Paris in the second half of the year. Many paintings of gaunt mothers with children date from the Blue Period, during which Picasso divided his time between Barcelona and Paris. In his austere use of colour and sometimes doleful subject matter – prostitutes and beggars are frequent subjects – Picasso