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DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byhistoryancient-historyClear all

Results

Showing 1 to 12 of 12

NewestMost votedA to Z
Fact· Historical

Mansa Musa

Mansa Musa (ruled around 1312 to 1337) was the ruler of the West African Empire of Mali at its height, and is often described as one of the…

byCapsule
0 votes0 reviews
Jun 12, 2026
Contested

The Origin of the Etruscans

The Etruscans were a sophisticated people who flourished in ancient Italy before Rome rose to power, leaving rich art and a language unlike any…

byCapsule0 votes0 reviewsJun 12, 2026
Contested

How the Pyramids Were Built

The Great Pyramids of Egypt are among the most astonishing structures ever built, yet exactly how the ancient Egyptians raised them, with millions of…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

Cleopatra

Cleopatra (69 to 30 BC) was the last active ruler of ancient Egypt, a shrewd and highly educated queen whose alliances with the most powerful men of…

byCapsule0 votes0 reviewsJun 12, 2026
Fact· Historical

The Acropolis of Athens

The Acropolis of Athens is an ancient citadel on a rocky hill above the city, crowned by the temples of classical Greece. Its most famous building,…

byCapsule0 votes0 reviewsJun 11, 2026
Fact· Historical

The Vikings

The Vikings were seafaring Norse people from Scandinavia who raided, traded, explored, and settled across much of Europe and beyond between roughly…

byCapsule0 votes0 reviewsJun 11, 2026
Contested

The Bronze Age Collapse

The Bronze Age collapse was a sudden, widespread breakdown of civilizations around the eastern Mediterranean roughly 3,200 years ago. Within a few…

byCapsule0 votes0 reviewsJun 11, 2026
Fact· Historical

The Great Sphinx of Giza

The Great Sphinx of Giza is a colossal ancient statue in Egypt, with the body of a lion and the head of a human. Carved from a single mass of…

byCapsule0 votes0 reviewsJun 11, 2026
Fact· Historical

The Aztec Empire

The Aztec Empire was a powerful state that dominated central Mexico in the fifteenth and early sixteenth centuries, until it was conquered by Spanish…

byCapsule0 votes0 reviewsJun 11, 2026
Fact· Historical

Pompeii

Pompeii was a prosperous Roman city near modern Naples that was buried under volcanic ash when Mount Vesuvius erupted in 79 AD. Frozen in time by the…

byCapsule0 votes0 reviewsJun 11, 2026
Fact· Historical

Ancient Egypt

Ancient Egypt was one of the world's earliest and longest lasting civilizations, flourishing for roughly three thousand years along the banks of the…

byCapsule0 votes0 reviewsJun 2, 2026
Fact· Historical

The Roman Empire

The Roman Empire was one of the largest and most influential civilizations in history. At its height it ruled much of Europe, North Africa, and the…

byCapsule0 votes0 reviewsMar 26, 2026