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Fabian Gottlieb von Bellingshausen was a Russian naval officer, explorer and cartographer. He is best known for his voyages in the Southern Ocean, which he made during the 1819-1821 and 1821-1823 expeditions. On these expeditions, Bellingshausen and his crew made several significant discoveries, including the continent of Antarctica, the South Shetland Islands, and the South Orkney Islands.