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Head-to-Head Comparison

Gregor Mendel vs John Locke

Gregor Mendel (IQ 165) vs John Locke (IQ 180). Side-by-side comparison of intellect, achievements, era and cultural impact.

Gregor Mendel
1822–1884 · CZ
165
Estimated IQ
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John Locke
1632–1704 · GB
180
Estimated IQ
Read full biography →
Born18221632
Died18841704
CountryCZGB
Estimated IQ 165 180
Best known forCreating the science of geneticsBeing known as the "Father of Liberalism"

Who had the higher IQ?

By the most cited estimates, John Locke tops this matchup with an estimated IQ of 180, a 15-point margin over Gregor Mendel (165). IQ estimates for historical figures are reconstructions, not test results — they sit on top of biographical evidence, productivity, and the difficulty of the problems each person solved. Treat the number as a directional signal, not a verdict.

Achievements compared

Gregor Mendel is best known for: Creating the science of genetics John Locke is best known for: Being known as the "Father of Liberalism"

Different eras, different boards

The two were born roughly 190 years apart (1822 vs 1632), which matters: scientific tools, available knowledge, and intellectual culture compound. Comparing minds across eras is comparing players on different boards.

The verdict

So who was greater? The honest answer: they're not strictly comparable. By raw IQ proxy, John Locke edges out. By measurable, lasting influence in their respective field, both are anchors of the human record. If you have to pick one to bet civilization on, pick the one working on the problem you care about.

Frequently Asked

Who had the higher IQ, Gregor Mendel or John Locke?
Estimated IQs are 165 for Gregor Mendel and 180 for John Locke. John Locke rates higher by 15 points. Historical IQ figures are reconstructions, not measured scores.
What is Gregor Mendel most famous for?
Creating the science of genetics
What is John Locke most famous for?
Being known as the "Father of Liberalism"
Did Gregor Mendel and John Locke ever meet?
They were contemporaries, though there is no documented direct meeting in our sources.

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