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(Sannikova Zemlia), an “island” in the Arctic Ocean “observed” by some explorers north of the Novosibirskie Islands. It was first reported by Ia. Sannikov in 1811, and later by E. Toll’ in 1886 and 1893. After intense searching in the first half of the 20th century, it was determined that Sannikov Land did not exist. In the opinion of some researchers, Sannikov Land had been destroyed by the sea and had disappeared, like a number of other islands composed largely of fossil ice.