Berbice Dutch Creole is a now extinct Dutch-based creole language. It had a lexicon partly based on a dialect of the West African language of Ijaw. In contrast to the widely known Negerhollands Dutch creole spoken in the Virgin Islands, Berbice Creole Dutch and its relative Skepi Creole Dutch, were more or less unknown to the outside world until Ian Robertson first reported on the two languages in 1975. In February 2010, the language was declared officially extinct, according to an article in the upcoming March issue of the Dutch edition of National Geographic magazine. In the 80's there was still a small number of Berbice speakers in Guyana but, since was discovered that the last speaker died in 2005, the authoritative international language database Ethnologue had declared it extinct.