 "Nova Zeelandia" later became "Nieuw Zeeland" in Dutch.It is unknown when this was anglicised to New Zealand, but when British explorer James Cook left on his first voyage of discovery in 1768, the sealed orders given to him by the British Admiralty ordered him to proceed "…to the Westward between the Latitude beforementioned and the Latitude of 35° until’ you discover it, or fall in with the Eastern side of the Land discover’d by Tasman and now called "New Zeland.