Robert Edwin Peary (May 6, 1856 – February 20, 1920) was an American explorer who claimed to have been the first person, on April 6, 1909, to reach the geographic North Pole -- a claim that has subsequently attracted much criticism.

Peary was born in the town of Cresson, 80 miles east of Pittsburgh, Pennsylvania in 1856. He moved to Maine, attended Portland High School, was a graduate of Bowdoin College, where he was a member of Delta Kappa Epsilon fraternity. He was commissioned a Civil Engineer Corps Officer in the United States Navy October 26, 1881. With his wife, Josephine Diebitsch Peary, he had two children: Marie Peary and Robert Edwin Peary, Jr. During the Arctic expeditions, both Peary and his fellow explorer Matthew Henson fathered children with Inuit women, two of whom were brought to the attention of the American public by S. Allen Counter, who met them on a Greenland expedition.

Peary made several expeditions to the Arctic, exploring Greenland by dog sled in 1886 and 1891 and returning to the island three times in the 1890s. Twice he dared to cross northwest Greenland over the ice cap, discovering Navy Cliff. He intermittently indicated that Greenland's northern tip (still called Peary Land, though other explorers had reached it earlier) was not attached to Greenland, but the supposedly separating "Peary Channel" was actually a fjord. (Thus, the United States's claim to Peary Land was relinquished in 1917 in the Virgin Islands treaty.) Unlike most previous explorers, Peary studied Inuit survival techniques, built igloos, and dressed in practical furs in the native fashion both for heat preservation and to dispense with the extra weight of tents and sleeping bags when on the march. Peary also relied on the Inuit as hunters and dog-drivers on his expeditions, and pioneered the use of the system (which he called the "Peary system") of using support teams and supply caches for Arctic travel. His wife, Josephine, accompanied him on several of his expeditions. He also had 8 toes amputated but bravely kept exploring.

His 1898-1902 expedition was darkened by this incident and by an unfounded attempt to put forth a 1899 visual discovery of "Jesup Land" west of Ellesmere, leading to his allegation that this was his sighting of Axel Heiberg land prior to its discovery by Norwegian explorer Otto Sverdrup's expedition, a Peary claim now universally rejected. However, the genuine achievements of this remarkable expedition were weightier. The gold medals of the American Geographical Society and Royal Geographical Society of London honored Peary's tenacity, his excellent mapping of his considerable real discoveries, as well as his entry into exploration's Valhalla through his never questioned and ever unique discovery in 1900 of the northernmost land on earth, Cape Jesup at the north tip of Greenland. Peary also achieved an equally undoubted farthest north for the western hemisphere in 1902 north of Canada's Ellesmere Island.

Peary's next-last expedition was supported by a $50,000 gift by George Crocker. Peary's new ship Roosevelt battled its way through the ice between Greenland and Ellesmere Island to an American hemisphere farthest north by ship. The 1906 "Peary System" dogsled drive for the pole across the rough sea ice of the Arctic Ocean started (as it would again in 1909) from the north tip of Ellesmere at 83° north latitude. The parties made well under 10 miles a day until they became separated by a storm, so Peary was inadvertently (unlike 1909) without a companion sufficiently trained in navigation to verify his account from that point northward. With insufficient food and with the negotiability of the ice between himself and land an uncertain factor, he made the best dash he could and barely escaped with his life off the melting ice. On April 20th, he was no further north than 86°30' latitude yet he claimed to have the next day achieved a Farthest North world record at 87°06' and returned to 86°30' without camping, an implied trip of at least 72 nautical miles (83 statute miles) between sleeps, even assuming undetoured travel.

After returning to the Roosevelt in May, Peary in June began weeks of further agonizing travel by heading west along the shore of Ellesmere, discovering Cape Colgate, from the summit of which he claimed in his 1907 publications he had seen a previously undiscovered far-north "Crocker Land" to the northwest on June 24th of 1906. Yet his diary for this time and place says "No land visible" and Crocker Land was in 1914 found to be non-existent by Donald MacMillan and Fitzhugh Green. On December 15, 1906 the National Geographic Society, which was primarily known for publishing a popular magazine, certified Peary's 1905-6 expedition and Farthest with its highest honor, the Hubbard Gold Medal; no major professional geographical society followed suit.

For his final assault on the pole, he and 23 men set off from New York City aboard the Roosevelt under the command of Captain Robert Bartlett on July 6, 1908. They wintered near Cape Sheridan on Ellesmere Island and from Ellesmere departed for the pole on February 28-March 1, 1909. The last support party was turned back from "Bartlett Camp" on April 1, 1909 in latitude no greater than 87°45' north. (The figure commonly given, 87°47', is based upon Bartlett's slight miscomputation of the distance of a single Sumner line from the pole.) On the final stage of the journey towards the North Pole only five of Peary's men, Matthew Henson, Ootah, Egigingwah, Seegloo and Ooqueah, remained. On April 6, he established "Camp Jesup" allegedly within five miles of the pole. In his diary for April 7 (but actually written up much later when preparing his journals for publication), Peary wrote "The Pole at last!!! The prize of 3 centuries, my dream and ambition for 23 years. Mine at last..."

Peary's lobbying early headed off an intention among some congressmen to have his claim to the pole evaluated by explorers. As eventual congressionally recognized "attainer" of the pole (not "discoverer" in deference to 1908 North Pole claimant Frederick Cook's supporters) Peary was given a Rear Admiral's pension and the thanks of Congress by a special act of March 30, 1911. In the same year, he retired to Eagle Island, located on the coast of Maine, in Freeport. (His home there is now a Maine State Historic Site.) Civil Engineer Peary received honors from numerous scientific societies of Europe and America for his Arctic explorations and discoveries. He died in Washington, D.C., February 20, 1920 and was buried in Arlington National Cemetery. Matthew Henson was reinterred nearby on April 6, 1988.

The Liberty ship SS Robert E. Peary, the destroyer USS Peary (DD-226) the cargo ship USNS Robert E. Peary (T-AKE-5), and Knox-class frigate USS Robert E. Peary (FF 1073) were named for him. The Peary-MacMillan Arctic Museum at Bowdoin College is named for Peary and fellow Arctic explorer Donald B. MacMillan.

Peary was the author of several books, the most famous being Northward over the Great Ice (1898) and The North Pole (1910). The movie Glory & Honor by Kevin Hooks (2000) effectively dramatizes his hellish 1909 journey to the vicinity of the pole. Even explorer A.Greely who with the majority of explorers came (after initial acceptance) to doubt Peary's reaching 90°, correctly notes that no Arctic expert questions that (unlike Cook) Peary courageously risked his life travelling hundreds of miles from land and that he reached regions adjacent to the pole.

In his book Ninety Degrees North, polar historian and author Fergus Fleming describes Peary as "undoubtedly the most driven, possibly the most successful and probably the most unpleasant man in the annals of polar exploration." He was also one of the most intelligent, bold, and able. His skills with the instruments and the mathematics of surveying ensured that all of his genuine exploring discoveries are placed beyond doubt by his records of celestial observations in connection with magnetic variation determination and finding longitude by application of spherical trigonometry via logarithms.

Some modern critics of Peary focus on his treatment of the Inuit, including a boy named Minik Wallace. With Inuit women, Peary and Henson both fathered children outside of marriage. This fact was brought up by Cook and his followers during Peary's lifetime, and would have damaged his advancement if it had been accepted, especially since Peary appears to have started his relationship with his Inuit wife "Ally" when she was 14 years old, while his prime financial backer was New York philanthropist Morris K. Jesup, a major force in the founding of Anthony Comstock's New York Society for the Suppression of Vice. Numerous explorers knew of these matters right along but had no wish to mention them publicly, which would endanger either their financial backing from scandal-shy geographical societies or their own Inuit relationships, e. g., explorer (and first Peary biographer) Fitzhugh Green's, with Peary's Ally in 1914. However, by the 1960s the truth was widely acknowledged. Peary’s son Kali was eventually brought to the attention of the broader American public by S. Allen Counter, who met him on a Greenland expedition. The "discovery" of these children and their meeting with their American relatives were documented in a book and documentary titled North Pole Legacy: Black, White and Eskimo.

Peary's claim to have reached the North Pole has been subject to doubt for a number of reasons. He had no sooner returned from the Arctic before he learned that Frederick Cook was also claiming to have reached the pole the previous year. Cook's claims were quickly dismissed after he submitted to the scientific community alleged 1908 North Pole logs that were obvious frauds . Cook also was met with skepticism since his claim of being the first to climb Mt. McKinley in 1906 was found to be a hoax .

A few weeks before Cook's pole pretension was rejected by a Danish panel of explorers and navigational experts, Peary (who did not make Cook's mistake of submitting to international neutrals or to explorers) saw his claim certified by the National Geographic Society whose chief Gilbert Grosvenor had persuaded the National Academy of Sciences not to get involved. Despite internal council splits (which only became known in the 1970s) the Royal Geographical Society of London gave Peary its gold medal in 1910. Neither the American Geographical Society nor any of the geographical societies of semi-Arctic Scandinavia has recognized the North Pole claim.

The party that accompanied Peary on the final stage of the journey included no one who was trained in navigation and could independently confirm his own navigational work, a point exacerbated by Peary's omission to produce records of observed data for steering: for the direction ("variation") of the compass, for his longitudinal position at any time, or for post-Bartlett Camp zeroing-in on the pole either latitudinally or transversely .

The last five marches when Peary was accompanied by a navigator (Capt. Bob Bartlett) averaged no better than 13 miles/march northing. But once the last support party turned back at "Camp Bartlett" from where Bartlett was ordered southward, at least 135 nautical miles (155 statute miles) from the pole, Peary's claimed speeds immediately double for the five marches to Camp Jesup, and then go to double that during the 2½ day return to Camp Bartlett, at which point his speed henceforth slows drastically compared to that pace. Peary's account of a beeline journey to the pole and back — which would have assisted his claim of such speed — is contradicted by companion Henson's account of tortured detours to avoid "pressure ridges" (ice floes' rough edges, often a few meters high) and "leads" (of open water between those floes). The conflicting and unverified claims of Cook and Peary prompted Roald Amundsen to take extensive precautions in navigation during his Antarctic expedition so as to leave no room for doubt concerning his 1911 attainment of the South Pole, which (like Robert Scott's a few weeks later in 1912) was supported by the sextant, theodolite, and compass observations of several other navigators. See Polheim.

Some polar historians believe that Peary honestly thought he had reached the pole. Others have suggested that he was guilty of deliberately exaggerating his accomplishments. The latter class of skeptics are assisted by the fact that at the alleged victory moment Peary stopped writing in his diary until return to Bartlett Camp and permanently stopped conversing with Henson. Others have suggested that any hint that Peary did not reach the pole must be the work of pro-Cook conspirators who are simply out to discredit Peary, though no current leading explorer or scientist who is skeptical of Peary's pole claim believes in Cook's.

In 1989, the National Geographic Society (a major sponsor of Peary's expeditions) concluded, based on the shadows in photographs and ocean depth measures taken by Peary, that he was no more than five miles away from the pole. But since Peary's original camera (a 1908 #4 Folding Pocket Kodak) has not survived, and the camera was made with at least six different lenses from various manufacturers, the focal length of the lens -- and hence the shadow analysis which is based upon it -- must be considered uncertain at best. The National Geographic Society has never released Peary's photos for independent analysis. Scientific specialists' reaction to the National Geographic's two dimensional photogrammetry has not been warm .

The latest in Peary advocates' series of attempts to generate the proof of his pole claim which he neglected to provide occurred in 2005 when the British explorer Tom Avery and four companions recreated the outward portion of Peary's journey with replica wooden sleds and Canadian Eskimo Dog teams, reaching the North Pole in 36 days, 22 hours – nearly five hours faster than Peary. Avery writes on his web site that "The admiration and respect which I hold for Robert Peary, Matthew Henson and the four Inuit men who ventured North in 1909, has grown enormously since we set out from Cape Columbia. Having now seen for myself how he travelled across the pack ice, I am more convinced than ever that Peary did indeed discover the North Pole." But Avery and his team were airlifted off the pole instead of returning by dogsled, a circumstance which allowed his team to carry much less weight in food and supplies than would otherwise have been needed, and much less than Peary took.

It has been claimed by supporters of Peary and Henson that the depth soundings they made on the outward journey match recent surveys and so confirm that they reached the pole . However, only the first few of the Peary party's soundings, taken nearest the shore, actually touched bottom; thus their usefulness is extremely limited .

Following the Cook claim's quick collapse among scientists and explorers, Peary's adherents have for a century understandably portrayed Cook's few remaining believers as a quasi-religious cult by quoting a wise 1909 prediction that "there will be a Cook party to the end of time".

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*NY Times, April 6, 1909, Peary Discovers the North Pole After Eight Trials in 23 Years *Works by Robert E. Peary at Project Gutenberg *