116 years ago today, on April 6, 1909 (February 16, 1909 lunar calendar), humans first reached the North Pole on foot. Robert Peary reached the North Pole on April 6, 1909, American Arctic explorer Peary successfully reached the North Pole, becoming the first person in the world to reach the North Pole. The North Pole is located in the middle of the Arctic Ocean's Arctic waters. It is cold all year round, all kinds of floating ice are widely distributed, the variety and quantity of marine life are very scarce, and the living environment is very harsh. It is precisely because of this that it attracts many explorers from all over the world. Since the Dutch geographer Valerie Nimas first divided the Arctic Ocean independently in 1650, for more than 300 years, human beings have never stopped exploring this so-called "mysterious peak of the world" - the North Pole. They used all possible methods and means: some went by sea boat, some by dog sledding or on foot; some tried to drift with the ice floes; some went by balloon or airship; more recently, some people wanted to use submarines to sail under the ice or go by plane, but these advanced methods are not comparable to the legs of the American explorer Piri. Piri has accumulated a wealth of experience in preparing for trekking to the Arctic for many years. He first trained on the ice of Greenland and on dog sledding marches. He learned from the failure of previous Arctic expeditions, noticed the knowledge of iceberg rafting that was not much appreciated at the time, and decided to start his Arctic expedition from the north coast of Greenland. Piri led four expeditions to the North Pole, the first three of which were unsuccessful. In the first expedition in 1901, the expedition reached 83 ° 54 ¡ä north latitude, and due to the blockage of heavy icebergs and the extreme fatigue of the sled dogs, the team had to return to the original place. Piri's second expedition in 1902 was also unsuccessful, this time they traveled 37 kilometers further north than the previous expedition. On their third expedition to the North Pole in 1906, they reached 87 ° 06 ¡ä north latitude, but ultimately failed due to insufficient food rations. These failures did not intimidate Piri, but strengthened his determination to explore the North Pole. In 1909, Piri decided to lead the expedition to the North Pole for the fourth time. He summarized the reasons and lessons of the previous failures and made sufficient preparations. This time, he divided the 24 members of the expedition into six groups, five of which were auxiliary teams and one group was the main team. The main task of the auxiliary team was to open the road ahead, build barracks and carry luggage and supplies to ensure that the main team could effectively advance north. On February 22, 1909, the expedition led by Piri departed from Cape Columbia (83 ° 07 ¡ä north latitude) in northwest Greenland, which was about 760 kilometers from the North Pole. After a 25-day march along the 70 ° west longitude, the expedition reached 85 ° 23 ¡ä north latitude, with an average of only 10 kilometers per day and night. Before reaching 85 ° north latitude, Piri ordered the auxiliary team to return to the camp, and replaced the damaged dogs in the main team with the best dogs. On March 30, Piri reached 87 ° 47 ¡ä north latitude. On April 6, the expedition reached the North Pole. Piri stayed at the North Pole for 30 hours before returning to camp. In his diary on the way home, Piri wrote that the Arctic Ocean was "truly amazing". In fact, it was exactly what he had dreamed of seeing.