The oldest known Balinese paintings, kept at Pura Besakih today, are of a lotus flower and the Hindu-deity Ganesha on two wooden boards. The work dates back to the 15th century. Until the beginning of the 20th century, the dominant form of painting was the portrayal of Hindu epics by painters and illustrators called 'Sangging'. Aside from making large representational paintings, the Sangging were expected to decorate everything from gourds, wooden altars, bamboo vessels, headboards for princely beds, and, in particular, required to illustrate astrological wall hangings on bark paper or cloth. It wasn't until the early 1900s that western influences reached Bali. The use of Asian symbols in the works of, Paul Gauguin, Toulouse Lautrec, Camille Pissaro and others created a new trend for Asian influenced art and European painters, such as the German Walter Spies and Dutch Rudolph Bonnet Bali.