Sannikov Land
Under the employment of Semen and Lev Syrovatskiy, Yakov Sannikov conducted numerous hunting and cartographic expeditions between 1800 and 1810. On one of these expeditions in 1805, he discovered Faddeyevsky Island. In 1809–1810 Yakov Sannikov and Matvei Gedenschtrom went to the New Siberian Islands on a cartographic expedition. Yakov Sannikov reported the sighting of a "new land" north of Kotelny in 1811. This became the myth of Zemlya Sannikova or "Sannikov Land".