São Tomé and Príncipe, officially the Democratic Republic of São Tomé and Príncipe, is an island country in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main islands of São Tomé and Príncipe, about 140 km apart and about 250 and 225 km off the northwestern coast of Gabon. With a population of 201,800, São Tomé and Príncipe is the second-smallest and second-least populous African sovereign state after Seychelles as well as the smallest and least populous Portuguese-speaking country.
The islands were uninhabited until their discovery by Portuguese explorers in the 15th century. Gradually colonized and settled by the Portuguese throughout the 16th century, they collectively served as a vital commercial and trade center for the Atlantic slave trade. The rich volcanic soil and proximity to the equator made São Tomé and Príncipe ideal for sugar cultivation, followed later by cash crops such as coffee and cocoa; the lucrative plantation economy was heavily dependent upon imported African slaves.