The city has a long history, and was of considerable importance in the Roman province of Gallia Narbonensis. The Roman and Romanesque Monuments of Arles were listed as UNESCO World Heritage Sites in 1981. The Dutch post-Impressionist painter Vincent van Gogh lived in Arles in 1888–1889 and produced over 300 paintings and drawings during his time there. An international photography festival has been held in the city since 1970.