Among fi rst widely known circumnavigations of the early 19th century, the journeys of outstanding Captain L.A. von Hagemeister turned out to be half-remembered. Experienced seafarer, explorer, the pioneer of the “Eastern route” around the globe, Russian America governor, he was the fi rst who made three circumnavigations after J. Cook and M.P. Lazarev. He also commanded the fi rst Russian ship that visited Port Jackson in Australia. Carrying on the tradition of Russian seafarers, L.A. von Hagemeister performed continuous geographical and astronomical explorations, defi ned more exactly the coordinates of many encountered islands in the Fiji and Samoa archipelagos as well as the Cook Islands. In the Marshall Islands he discovered two groups of inhabited islands forming a chain named the Menshikov Atoll (Kwajalein) by him. His voyages were rather signifi cant in terms of their diversifi ed scientifi c results. L.A. von Hagemeister holds a high position among famous seafarers who bolstered Russia’s reputation as a major maritime nation in the early 19th century.