German art has a long and distinguished tradition in the visual arts, from the earliest known work of figurative art to its current output of contemporary art. Germany has only been united into a single state since the 19th century, and defining its borders has been a notoriously difficult and painful process. For earlier periods German art often effectively includes that produced in German-speaking regions including Austria, Alsace and much of Switzerland, as well as largely German-speaking cities or regions to the east of the modern German borders. Although tending to be neglected relative to Italian and French contributions from the point of view of the English-speaking world, German art has played a crucial role in the development of Western art, especially Celtic art, Carolingian art and Ottonian art. From the development of Romanesque art, France and Italy began to lead developments for the rest of the Middle Ages, but the production of an increasingly wealthy Germany remained highly important. The German Renaissance developed in rather different directions to the Italian Renaissance, and was initially dominated by the central figure of Albrecht Dürer and the early German domination of printing. The final phase of the Renaissance, Northern Mannerism, was centred around the edges of the German lands, in Flanders and the Imperial capital of Prague, but, especially in architecture, the German Baroque and Rococo took up these imported styles with enthusiasm. The German origins of Romanticism did not lead to an equally central position in the visual arts, but German participation in the many broadly Modernist movements following the collapse of Academic art has been increasing important. Prehistory to Late Antiquity The area of modern Germany is rich in finds of prehistoric art, including the Venus of Hohle Fels. This appears to be the oldest undisputed example of Upper Paleolithic art and figurative sculpture of the human form in general, from over 35,000 years BP, which was only discovered in 2008; the better-known Venus of Willendorf (24–22,000 BP) comes from a little way over the Austrian border. The spectacular finds of Bronze Age golden hats are centred on Germany, as was the "central" form of Urnfield culture, and Hallstatt culture. In the Iron Age the "Celtic" La Tène culture centred on Western Germany and Eastern France, and Germany has produced many major finds of Celtic art like the elite burials at Reinheim and Hochdorf, and oppida towns like Glauberg, Manching