Democritus vs William James Sidis

Who Was the Greater Genius? A Complete Comparison

Democritus
IQ185
Born460
OriginAbdera, Thrace
Known ForAtomism and Aetiology
VS
William James Sidis
IQ250
Born1898
Died1944
OriginManhattan, New York City, U.S.
Known ForThe Animate And The Inanimate

About Democritus

An Ancient Greek pre-Socratic philosopher primarily remembered today for his formulation of an atomic theory of the universe

Read full biography of Democritus → · In-Depth Article →

About William James Sidis

American child prodigy

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The Verdict

Based on estimated IQ scores, William James Sidis (IQ 250) ranks higher than Democritus (IQ 185). However, both made extraordinary contributions.

Frequently Asked Questions

Who had a higher IQ — Democritus or William James Sidis?

Democritus had an estimated IQ of 185 while William James Sidis had an estimated IQ of 250.

What is each genius known for?

Democritus is known for: Atomism and Aetiology. William James Sidis is known for: The Animate And The Inanimate.

Are both considered geniuses?

Yes. Both Democritus and William James Sidis are universally regarded as among history's greatest intellects.

Full Profile: DemocritusFull Profile: William James Sidis

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