Geography
São Tomé & Príncipe Quiz
Africa's second-smallest country — volcanic islands, cocoa plantations, and where Einstein was proved right.
Africa's second-smallest country — volcanic islands, cocoa plantations, and where Einstein was proved right.
In 1919, British astronomer Arthur Eddington travelled to Roça Sundy on Príncipe to photograph a total solar eclipse — and the results confirmed Einstein's general theory of relativity, changing physics forever. This 50-question quiz explores the twin volcanic islands of São Tomé and Príncipe: from their role as the world's largest cocoa producer in 1908, the dramatic Pico Cão Grande volcanic needle, and the Roça plantation system to the country's stable democracy, Obo National Park, and the creole cultures of the Forros and Angolares.
São Tomé and Príncipe is Africa's second-smallest country, a twin-island nation of volcanic peaks, dense rainforest, and cocoa plantations in the Gulf of Guinea. With just 1,001 square kilometres and roughly 223,000 people, these islands punch far above their weight in scientific history, biodiversity, and chocolate production.
Each round presents 10 randomized multiple-choice questions drawn from a pool of 50, so every playthrough is different. You get instant feedback with explanations after each answer, plus a shareable score at the end.
You'll explore the islands' volcanic geology along the Cameroon Line, their discovery by Portuguese explorers around 1470, the plantation economy built on sugar and then cocoa, the Eddington eclipse expedition that confirmed relativity, Obo National Park's incredible biodiversity, and the creole cultures that make this tiny nation unique.
São Tomé and Príncipe sits in the Gulf of Guinea, about 250 km off the coast of Gabon in Central Africa. The two main islands straddle the equator and are volcanic in origin, part of the Cameroon Line.
Cocoa remains the dominant agricultural export, accounting for roughly 80% of export earnings. The country was once the world's largest cocoa producer and now produces high-quality single-origin chocolate.
In 1919, Arthur Eddington observed a total solar eclipse from Roça Sundy on Príncipe and photographed the bending of starlight around the sun — providing the first experimental confirmation of Einstein's general theory of relativity.
Last updated: April 2026