group, and Amundsen sent Johansen and the other two men to explore King Edward VII Land. A second attempt, with a team of five made up of Olav Bjaaland, Helmer Hanssen, Sverre Hassel, Oscar Wisting and Amundsen, departed base camp on 19 October. They took four sledges and 52 dogs. Using a route along the previously unknown Axel Heiberg Glacier, they arrived at the edge of the Polar Plateau on 21 November after a four-day climb. The team and 16 dogs arrived at the pole on 14 December, a month before Scott's group. Amundsen named their South Pole camp Polheim. Amundsen renamed the Antarctic Plateau as King Haakon VII's Plateau. They left a small tent and letter stating their accomplishment, in case they did not return safely to Framheim. The team arrived at Framheim on 25 January 1912, with 11 surviving dogs. They made their way off the continent and to Hobart, Australia, where Amundsen publicly announced his success on 7 March 1912. He telegraphed news to backers. Amundsen's expedition benefited from his careful preparation, good equipment, appropriate clothing, a simple primary task, an understanding of dogs and their handling, and the effective use of skis. In contrast to the misfortunes of Scott's team, Amundsen's trek proved relatively smooth and uneventful. North Polar Expeditions and The Northeast Passage The Northeast Passage In 1918, an expedition Amundsen began with a new ship, , lasted until 1925. Maud was carefully navigated through the ice west to east through the Northeast Passage. With him on this expedition were Oscar Wisting and Helmer Hanssen, both of whom had been part of the team to reach the South Pole. In addition, Henrik Lindstrøm was included as a cook. He suffered a stroke and was so physically reduced that he could not participate. The goal of the expedition was to explore the unknown areas of the Arctic Ocean, strongly inspired by Fridtjof Nansen's earlier expedition with Fram. The plan was to sail along the coast of Siberia and go into the ice farther to the north and east than Nansen had. In contrast to Amundsen's earlier expeditions, this was expected to yield more material for academic research, and he carried the geophysicist Harald Sverdrup on board. The voyage was to the northeasterly direction over the Kara Sea. Amundsen planned to freeze the Maud into the polar ice cap and drift towards the North Poleas Nansen had