Hemisphere Septenrional” & “Hemisphere Meridional

Title

Hemisphere Septenrional” & “Hemisphere Meridional

Description

2 maps with the northern and southern hemisphere shown in a polar projection.

dated 1714

Artist

L´Isle, de /Covens & Mortier (1675-1726)

Guillaume De L´isle (1675- 1726) Paris, was a French cartographer known for his popular and accurate maps of Europe and the newly explored Americas and Africa. De L´isle was admitted into the French Académie Royale des Sciences, an institution financed by the French state. After that date, he signed his maps with the title of “Géographe de l’Académie”. Five years later, he moved to the Quai de l’Horloge in Paris, a true publishing hub where his business prospered. De L´isle’s ascension through the ranks culminated in 1718 when he received the title of Premier Géographe du Roi. His new office consisted in teaching geography to the Dauphin, King Louis XIV’s son, a task for which he received a salary. De L´sle’s reputation as a man of science probably helped .This supports the claim of the historian Mary Sponberg Pedley, who says “once authority was established, a geographer’s name might retain enough value to support two or three generations of mapmakers”. In De L´isle’s case, it could be said that his accomplishments surpassed his father’s. Up to that point, he had drawn maps not only of European countries, such as Italy, Spain, Germany, Great Britain, Poland, and regions such as the Duchy of Burgundy, but he had also contributed to the empire’s claims to recently explored continents of Africa and the Americas. Like many cartographers of these days, De L´isle did not travel with the explorers and elaborated the maps mostly in his office. The quality of his maps depended on a solid network that would provide him first-hand information. Given the family’s reputation and his own, De L´isle had access to fairly recent accounts of travellers who were coming back from the New World, which gave him an advantage over his competitors. Being a member of the Académie, he was also aware of recent discoveries, especially in astronomy and measurement. When he could not confirm the accuracy of his source, he would indicate it clearly on his maps. For instance, his Carte de la Louisiane shows a river that the baron of Lahontan claimed he discovered, but no one else could validate it, so Delisle warned the viewer that its actual existence was in doubt. De L´isle 's search for exactitude and intellectual honesty entangled him in a legal dispute in 1700 with Jean-Baptiste Nolin, a fellow cartographer. Noticing Nolin had used details that were considered original from his Map of the World, De L´isle dragged Nolin in court to prove his plagiarism. In the end, Delisle managed to convince the jury of scientists that Nolin only knew the old methods of cartography and therefore that he had stolen the information from his manuscript. Nolin's maps were confiscated and he was forced to pay the court costs.The scientificity of the work produced by the De L´isle family contrasted with the workshop of Sanson. While Sanson knowingly published outdated facts and mistakes, De L´isle strived to present up-to-date knowledge.

Historical Description

South Pole: Situated on the continent of Antarctica, it is the site of the United States Amundsen–Scott South Pole Station, which was established in 1956 and has been permanently staffed since that year. The Geographic South Pole is distinct from the South Magnetic Pole, the position of which is defined based on Earth's magnetic field. The South Pole is at the center of the Southern Hemisphere. In 1820, several expeditions claimed to have been the first to have sighted Antarctica. The basic geography of the Antarctic coastline was not understood until the mid-to-late 19th century. American naval officer Charles Wilkes claimed correctly that Antarctica was a new continent, basing the claim on his exploration in 1839–40, while James Clark Ross, in his expedition of 1839–43, hoped that he might be able to sail all the way to the South Pole. British explorer Robert Falcon Scott on the Discovery Expedition of 1901–04 was the first to attempt to find a route from the Antarctic coastline to the South Pole. The first men to reach the Geographic South Pole were the Norwegian Roald Amundsen and his party on December 14, 1911. Amundsen named his camp Polheim and the entire plateau surrounding the Pole King Haakon VII Vidde in honour of King Haakon VII of Norway. North Pole: While the South Pole lies on a continental land mass, the North Pole is located in the middle of the Arctic Ocean amid waters that are almost permanently covered with constantly shifting sea ice. Attempts to reach the North Pole began in the late 19th century, with the record for "Farthest North" being surpassed on numerous occasions. The first undisputed expedition to reach the North Pole was that of the airship Norge, which overflew the area in 1926 with 16 men on board, including expedition leader Roald Amundsen. Three prior expeditions – led by Frederick Cook (1908, land), Robert Peary (1909, land) and Richard E. Byrd (1926, aerial) – were once also accepted as having reached the Pole. However, in each case later analysis of expedition data has cast doubt upon the accuracy of their claims.