The island was discovered on 26 August 1878 by
Norwegian explorer Captain Edvard Holm Johannesen from
Tromsø. He named the island
Ensomheden—"solitude" in
Norwegian—due to its desolate appearance and isolated location in the
Arctic. This was based on certain observations made by polar explorers: During his expedition to
Franz Josef Land on ice-breaking steamer "Malygin" in 1931, Vize hoped to carry out oceanographic work in the Northern part of the Kara Sea, but his research was cut short by thick sea ice. Later expeditions and satellite pictures demonstrated that there were no other islands in the vicinity of Uedineniya. A cervical vertebra of a
plesiosaur (
Plesiosaurus latispinus) was discovered on the island during an expedition in the 1930s. It was studied by Soviet paleontologist A. N. Ryabinin. At the time of
World War II, there was a small
polar observatory on Uyedineniya built by the Soviet government. On September 8, 1942, the
German submarine U-251 (Lt. Captain Timm) surfaced close to the island and destroyed the weather station's small building and its garrison by firing grenades against those targets. This was one of the last actions of the
Kriegsmarine under
Operation Wunderland. Since May 1993, Uyedineniya has been a part of the
Great Arctic State Nature Reserve, the largest nature reserve in Russia intended to preserve the habitat of the
polar bears,
pinnipeds (namely,
walruses and
seals), and the many kinds of birds that live on the island. The polar observatory, which had been rebuilt during the
Cold War time, was abandoned in 1996. Presently there is no human habitation in Uyedineniya. ==Climate==