Polar exploration is the process of exploration of the polar regions of Earth – the Arctic region and Antarctica – particularly with the goal of reaching the North Pole and South Pole, respectively. Historically, this was accomplished by explorers making often arduous travels on foot or by sled in these regions, known as a polar expedition. More recently, exploration has been accomplished with technology, particularly with satellite imagery.
From 600 BC to 300 BC, Greek philosophers theorized that the planet was a Spherical Earth with North and South polar regions. By 150 AD, Ptolemy published Geographia, which notes a hypothetical Terra Australis Incognita. However, due to harsh weather conditions, the poles themselves would not be reached for centuries after that. When they finally were reached, the achievement was realized only a few years apart.
There are two claims, both disputed, about who was the first persons to reach the geographic North Pole. Frederick Cook, accompanied by two Inuit men, Ahwelah and Etukishook claimed to have reached the Pole on April 21, 1908, although this claim is generally doubted.