São Tomé and Príncipe: The Sugar and Cocoa Islands

Two islands, invented by a plantation

São Tomé and Príncipe is Africa's second-smallest country, two main islands and several islets straddling the equator off the coast of Gabon, with a little over 200,000 people. Nobody lived there before the Portuguese arrived in the 1470s, which makes the country's history unusually clear-cut: everything about it — its Portuguese language, its Catholic faith, its Creole culture, its population — was produced by a single economic project. On these islands Portugal built one of the world's earliest plantation colonies, and the model it refined here — enslaved African labour, a single export crop, absentee owners — was then carried across the Atlantic to Brazil and the Caribbean.

A short history

1. c. 1470–1493

   Discovery and settlement

   Portuguese navigators find empty islands and begin colonising.

2. 1500s

   The sugar boom

   São Tomé becomes one of the world's leading sugar producers.

3. late 1500s–1600s

   Decline and revolt

   Slave uprisings and Brazilian competition ruin the sugar economy.

4. 17th–18th c.

   A backwater

   The islands serve mainly as a slave-trade transit point.

5. 1800s

   Cocoa and coffee

   New plantation crops revive the economy on forced labour.

6. c. 1900–1910

   The "chocolate slavery" scandal

   Britain exposes the serviçal system; Cadbury boycotts the cocoa.

7. 1953

   The Batepá massacre

   Colonial forces kill hundreds of Forros resisting forced labour.

8. 1975

   Independence

   The MLSTP takes power as a one-party Marxist state.

9. 1991

   Multiparty democracy

   The islands hold free elections.

An early plantation colony

Portuguese ships reached the uninhabited islands around 1470, and settlement of São Tomé began in the 1490s with a mixed population of Portuguese settlers — including convicts and Jewish children forcibly taken from their parents — and enslaved Africans brought from the nearby mainland. The equatorial climate suited sugar cane, and by the mid-16th century São Tomé was Africa's foremost sugar exporter and, for a period, the largest sugar producer in the world, worked entirely by enslaved labour on large estates. It was, in effect, the prototype: the combination of tropical island, single cash crop, plantation organisation and African slavery was pioneered here before being scaled up massively in the Americas.

Collapse, and the slave route

By the late 16th century São Tomé's sugar economy was failing: soil exhaustion, competition from Brazil, Dutch attacks and a seven-year Dutch occupation from 1641, and repeated uprisings by enslaved people — the largest led by Amador in 1595 — while escaped slaves formed maroon settlements in the interior. The Angolares, a distinct community of the south, are traditionally said to descend from Angolan survivors of a 1540 shipwreck. For the next two centuries the islands were a quiet Portuguese possession whose main function was as a staging post in the Atlantic slave trade, transshipping captives from the mainland. A local free-Creole population, the Forros — descendants of freed slaves — became the established island society.

Cocoa, and "chocolate slavery"

In the 19th century Portugal introduced coffee and then cocoa, and the plantation economy revived spectacularly: by the first decade of the 1900s São Tomé and Príncipe was the world's largest cocoa producer. But slavery had been formally abolished in 1876, so the plantations ran on "serviçais" — contract labourers recruited, often by force or deception, from Angola, Mozambique and Cape Verde, who were rarely repatriated and whose children, the tongas, were born on the estates. A British investigation in the 1900s publicised the system, and the chocolate firm Cadbury led a boycott of São Tomé cocoa in 1909. The abuses continued in modified form for decades.

Batepá, and independence

Resentment among the Forros, who resisted being pushed into plantation labour, came to a head on 3 February 1953 when the colonial governor, alleging a plot, unleashed troops and armed settlers in a wave of killings and torture across the island — the Batepá massacre — in which several hundred people died. The anniversary is officially commemorated, and the massacre remains a defining event of the islands' colonial history. The independence movement, the MLSTP, formed in the late 1950s and was based in neighbouring Gabon, and when Portugal's dictatorship fell in 1974 the transition was rapid: São Tomé and Príncipe became independent on 12 July 1975 as a one-party communist state under President Manuel Pinto da Costa.

Since 1990

Economic failure and the end of the Cold War pushed the MLSTP to accept multiparty democracy in a 1990 constitution, and since 1991 the country has held regular, competitive elections and peaceful transfers of power, interrupted by an army takeover in July 2003 that lasted a week, and failed coup attempts in 2009 and November 2022. In January 2025 President Carlos Vila Nova dismissed Prime Minister Patrice Trovoada, who called the move unconstitutional, and Américo Ramos became prime minister; Vila Nova was re-elected in July 2026. Príncipe gained autonomy in 1995. The economy remains small and aid-dependent, based on cocoa — now often organic and premium-grade — tourism, and fishing; long-awaited offshore oil in the Gulf of Guinea has so far brought little revenue.

What São Tomé and Príncipe carries

São Tomé and Príncipe is the plantation colony in its purest form — two empty islands remade entirely by sugar, then cocoa, and by the enslaved and coerced labour that worked them. The model tested here shaped the whole Atlantic world. Batepá in 1953 gave the islands a founding national trauma, and the democracy built after 1990 has held, even as the economy that once led the world in cocoa has never recovered its former weight.