British navigator Captain James Cook arrived in 1773 and 1777; Cook named the islands the 'Hervey Islands' to honour a British Lord of the Admiralty; Half a century later the Russian Baltic German Admiral Adam Johann von Krusenstern published the Atlas de l'Ocean Pacifique, in which he renamed the islands the Cook Islands to honour Cook. Captain Cook navigated and mapped much of the group. Surprisingly, Cook never sighted the largest island, Rarotonga, and the only island that he personally set foot on was tiny, uninhabited Palmerston Atoll.[7]