scaring the attackers into withdrawal. One of the local people picked up an iron axe, tried using it, but threw it away. The explorers subsequently abandoned the southern camp and sailed back to Straumsfjord, killing five natives they encountered on the way, lying asleep in hide sacks. Karlsefni, accompanied by Thorvald Eriksson and others, sailed around Kjalarnes and then south, keeping land on their left side, hoping to find Thorhall. After sailing for a long time, while moored on the south side of a west-flowing river, they were shot at by a one-footed man, and Thorvald died from an arrow-wound. Once they reached Markland, the men encountered five natives, of whom they kidnapped two boys, baptizing them and teaching them their own language. The explorers returned to Straumsfjord, but disagreements during the following winter lead to the abandonment of the venture. On the way home, the ship of Bjarni the Icelander was swept into the Sea of Worms (Maðkasjár in Skálholtsbók, Maðksjár in Hauksbók) by contrary winds. The marine worms destroyed the hull, and only those who escaped in the ship's worm-proofed boat survived. This was the last Vinland expedition recorded in the saga. Medieval geographers Adam of Bremen The oldest commonly acknowledged surviving written record of Vinland appears in Descriptio insularum Aquilonis by Adam of Bremen written in about 1075. Adam was told about "islands" discovered by Norse sailors in the Atlantic by the Danish king Svend Estridsen. Galvano Fiamma The nearby Norse outpost of Markland was mentioned in the writings of Galvano Fiamma in his book, Cronica universalis. He is believed to be the first Southern European to write about the New World. Sigurd Stefansson The earliest map of Vinland was drawn by Sigurd Stefansson, a schoolmaster at Skalholt, Iceland, around 1570, which placed Vinland somewhere that can be Chesapeake Bay, St. Lawrence, or Cape Cod Bay. In the early 14th Century, a geography encyclopedia called Geographica Universalis was compiled at Malmesbury Abbey in England, which was in turn used as a source for one of the most widely circulated medieval English educational works, Polychronicon by Ranulf Higden, a few years later. Both these works, with Adam of Bremen as a possible source, were confused about the location of what they called Wintland—the Malmesbury monk had it on the ocean east of Norway, while Higden put it west of Denmark but failed to explain the distance. Copies of