Answer
Bellingshausen was the captain of the merchant ship Nadezhda, which was the first Russian circumnavigation of the Earth. The ship set sail from Kronstadt, Russia, on August 25, 1819, and returned to Kronstadt on August 20, 1821. During the voyage, the ship circumnavigated the Antarctic, and Bellingshausen discovered several islands and landmasses, including the continent of Antarctica.