In Swedish prehistory, the Vendel Period (; 540–790 AD) appears between the Migration Period and the Viking Age. The name is taken from the rich boat inhumation cemetery at Vendel parish church, Uppland. This is a period with very little precious metal and few runic inscriptions, crammed between periods with abundant precious metal and inscriptions. Instead, the Vendel Period is extremely rich in animal art on copper-alloy objects. It is also known for guldgubbar, tiny embossed gold foil images, and elaborate helmets with embossed decoration similar to the one found at Sutton Hoo in England. During the period, the Elder Futhark writing system was abandoned in favor of the Younger Futhark, virtually simultaneously over the whole of Scandinavia. There are some runestones from the period, most notably those at Rök and Sparlösa, both from c. 800. Other written sources about the period are few and hard to interpret: a few Icelandic sagas, the tale of Beowulf, and some southern European writers. Earlier Swedish historians tried to make use of these to create a coherent history, but this effort has largely been abandoned, and the period is now mostly studied by archaeologists. Swedish expeditions began to explore the waterways of what was to become Russia, Ukraine, Belarus at this time. Background The Germanic Iron Age is divided into the Early Germanic Iron Age (EGIA) and the Late Germanic Iron Age (LGIA). It is particularly for Sweden that the late Germanic iron age spanning between 550–800 is called the Vendel era. In Norway and Finland it is more common to refer to the period as the Merovingian Age, while the Danish refer to it as the Younger Germanic Iron Age. The late Germanic Iron Age begins with the fall of the Western Roman Empire and the rise of the Gothic kingdoms in Europe, later replaced by the Franks, the Lombards and the Avar Khaganate. After the Western Roman Empire fell, gold became scarce and Scandinavians began to make objects of gilded bronze, with decorative figures of interlacing animals. During the early Germanic Iron Age, decorations tended to be representational; the animal figures were drawn in more basic forms. In the later Germanic Iron Age, artistic styles became more abstract, symbolic, and intricate, including figures with interlaced shapes and limbs. The upheaval in Europe appears to have lessened somewhat due to the gradual cessation of the Gothic Wars. Emperor Justinian's Eternal Peace (532)