In England they are called Screevers and in Germany Strassenmaler. The Italian I Madonnari were itinerant artists. Aware of festival and holy days in each province and town, they traveled to join in the festivities to make a living from observers who would throw coins if they approved of the artists work. For centuries I Madonnari were folk artists, reproducing simple images with crude materials such as tiles, coal and chalk until World War II disrupted their tradition and reduced their numbers. In 1972, a street painting was being promoted again by the formation of a festival in Grazie di Curtatone, Italy and today the performance art-form is recognized all over the world. In 1982, Kurt Wenner, who is recognized as the innovator of 3-D street painting and others followed developing new styles based on the work of artists such as Andrea Mantegna, M. C. Escher, Michelangelo, Hans Holbein and others. Today this work is called 3d Street Painting, 3D Pavement Art, 3D Chalk Art, 3D Sidewalk Art, 3D Illusion, anamorphic or 3D, although in the past it was called one-point perspective. In 2010, Edgar Mueller, created a 100' x 40' 3-D street painting that for the first time in history was designed to metamorphose, the image changing from day to night from a giant into a fetus, through the use of photoluminescent paints.