Karl Marx vs Thomas Aquinas
Karl Marx (IQ 180) vs Thomas Aquinas (IQ 170). Side-by-side comparison of intellect, achievements, era and cultural impact.
| Born | 1818 | 1225 |
|---|---|---|
| Died | 1883 | 1274 |
| Country | DE | IT |
| Estimated IQ | 180 | 170 |
| Best known for | The fact that his teachings lead to revolutions in Russia, China, Cuba, Vietnam, and Cambodia. |
Who had the higher IQ?
By the most cited estimates, Karl Marx tops this matchup with an estimated IQ of 180, a 10-point margin over Thomas Aquinas (170). 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
Karl Marx is best known for: The fact that his teachings lead to revolutions in Russia, China, Cuba, Vietnam, and Cambodia. Thomas Aquinas is best known for: —
Different eras, different boards
The two were born roughly 593 years apart (1818 vs 1225), 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, Karl Marx 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.