An Explorer's Tool: Robert Peary's Theodolite
Winter 2005, Vol. 37, No. 4 | Pieces of History
βThe Pole at last!!!β With these words Robert E. Peary began his diary entry for April 6, 1909. His team, he believed, had become the first to reach the top of the world, a dream he had pursued for 20 years. In those years, Peary made eight expeditions to the Arctic region, three specifically to reach the Pole. As Pearyβs papers make clear, supplying such expeditions was a tremendous task. Clothing, tents, food, cooking utensilsβeverything needed to survive Arctic temperatures for monthsβhad to be packed in on foot and by dog sledge. The explorers also required scientific instruments so they could make observations, determine their locations, and gather data to record their progress.
Along with a sextant, telescope, and artificial horizon, the Peary Family Collection in the ΝώΔαΛΉΘΛΣιΐΦ³‘ includes the explorerβs theodolite. A theodolite is a calibrated optical instrument used to determine latitudinal and longitudinal positions. Pearyβs brass βtravellerβs theodolite,β manufactured by Keuffel & Esser Co. of New York, is less than a foot tall and sits on a wooden base.
This instrument is one of the more than half-million artifacts in the holdings of the ΝώΔαΛΉΘΛΣιΐΦ³‘ of the United States. The vast majority of these objects are part of the Presidential libraries, but about 1,500 are among the records in the Washington, DC, area and the regional archives. A large number of records relating to polar explorations were accessioned as donated materials from the explorers and their families. The Peary Family Collection became part of the ΝώΔαΛΉΘΛΣιΐΦ³‘ by way of a deed of gift signed by Pearyβs son and daughter on April 6, 1964.
The Public Vaults exhibition in Washington, DC, features a gallery devoted to polar exploration, revealing explorersβ contributions, the dangers they faced, and the triumphs they experienced.