John Dalton IQ

John Dalton was born in 1766 to a Quaker weaving family in Cumberland, England. He started teaching at a village school at the age of 12 and later moved to Manchester, where he taught mathematics and natural philosophy and kept daily weather records for 57 years. From his study of gases he developed the modern atomic theory, published in A New System of Chemical Philosophy from 1808. He died in Manchester in 1844.

No figure exists. LifeScore lists about 150 as an editorial marker, range 135 to 165. It rests on largely self-taught mastery of science, his atomic theory and his careful work on gases and colour blindness, all done while earning a living as a teacher.

It says elements are made of tiny atoms, all atoms of one element are alike in weight, and compounds form when atoms combine in simple whole-number ratios. It explained why substances combine in fixed proportions and gave chemistry its first table of relative atomic weights.

Yes. In 1794 he described his own condition, which made red look much like green. He guessed the fluid in his eye was tinted blue. A DNA test on his preserved eye in 1995 showed he lacked one type of colour receptor.

Dalton reasoned from careful numbers to simple rules. He noticed that elements combine in whole-number ratios and asked what would have to be true of matter for that to happen. His answer, discrete atoms with fixed weights, came from the pattern in the data.

What supports it

• A New System of Chemical Philosophy (1808 onwards) set out atomic theory and weights.
• His paper on colour vision of 1794 is a landmark in vision science.
• He was elected to the Royal Society and to the French Academy of Sciences.

What it cannot prove

• Some of his atomic weights and formulas were wrong.
• Much of his education was informal, so there is little early record.
• An editorial marker is a comparison aid built from achievement, not a measurement, and two careful readers could place it ten points apart.

John Dalton's IQ is represented here by a retrospective estimate of 150, not a verified test result. John Dalton is best known for exceptional systematic observation. The useful question is what the surviving evidence shows, not whether a precise modern score can be recovered.

Plain, methodical and patient. A Quaker teacher who kept careful records every day for decades.

The dominant archetype here is The Recorder. This archetype shapes decision patterns: what feels natural, what creates friction, and what blind spots tend to emerge.

Estimated IQ is 150. This is a rough estimate based on documented accomplishments and contemporary accounts, not a literal measurement.

About 40,000 people reportedly filed past his coffin in Manchester town hall in 1844.

John Dalton's estimate of 150 falls in the genius level IQ range. Want your own number rather than John's? Take the free IQ test or the quick IQ test. See what an IQ of 150 means, place it on the IQ chart or check how rare it is with the IQ rarity calculator.