Entrance to the harbour of Principe, from a 1727 engraving: the accompanying text was,This Island is very Woody and breeds abundance ofMonkeys, insomuch that it is not safe to walk in the Woods without a gun. The harbour is very convenient toCareen Ships in, and most ShipsBound from Africa to America with Slaves put in here for Food, Water etc."
The island was uninhabited when discovered by the Portuguese on 17 January 1471 and was first named after Saint Anthony ("Ilha de Santo Antão"). Later the island was renamed Príncipe ("Prince's [Island]") by KingJohn II of Portugal in honour of his sonAfonso, Hereditary Prince of Portugal (1475–1491). The first settlement, the townSanto António, was founded in 1502.[6] Subsequently, the north and centre of the island were made intoplantations byPortuguese colonists abusingslave labor. These concentrated initially on producingsugar and after 1822 oncocoa, becoming the world's greatest cocoa producer.[7] Since independence, these exploitative plantations have largely reverted to forest.
In 1771, Príncipe had a population of 5,850: 111 whites, 165 free mulattoes, 6 mulatto slaves, 900 free blacks, and 4,668 black slaves. In 1875, the year when slavery was officially abolished in the archipelago, Príncipe's population had dropped to only 1,946, of whom 45 were Europeans, 1,521 were free natives, and 380 were freemen.
In 2018, Príncipe had a population of 8,420 people.
UNESCO established theIsland of Príncipe Biosphere Reserve in 2012 under theMan and the Biosphere Programme. The reserve encompasses the entire emerged area of the island of Príncipe, and its islets Bom Bom, Boné do Jóquei, Mosteiros, Santana, and Pedra da Galei, and the Tinhosas islands.[11] The biosphere was extended in 2025 toSão Tomé, making São Tomé and Príncipe the first country to be designated as such in its entirety.[12]
1 1975 is the year of East Timor's Declaration of Independence and subsequentinvasion by Indonesia. In 2002, East Timor's independence was fully recognized.