In 1820, the Russian explorer Mikhail Lazarev visited Nukufetau as commander of the ''Mirny''. Louis Isidore Duperrey, captain of ''La Coquille'', sailed past Nanumanga in May 1824 during a circumnavigation of the earth (1822–1825). A Dutch expedition (the frigate ''Maria Reigersberg'') found Nui on the morning of 14 June 1825, and named the main island (Fenua Tapu) as ''Nederlandsch Eiland''.