So Tom and Prncipe, officially the Democratic Republic of So Tom and Prncipe, is a Portuguese-speaking island nation in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main islands: So Tom and Prncipe, located about 140 kilometres (87 mi) apart and about 250 and 225 kilometres (155 and 140 mi), respectively, off the northwestern coast of Gabon. Both islands are part of an extinct volcanic mountain range. So Tom, the sizable southern island, is situated just north of the equator. It was named in honour of Saint Thomas by Portuguese explorers who arrived at the island on his feast day. With a population of 163,000 (2010), So Tom and Prncipe is the second-smallest African country (Seychelles being the smallest). It is the smallest country in the world in terms of population that is not a former British overseas territory, a former United States trusteeship, or one of the European microstates.
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