According to the historical estimates compiled by Catharine Morris Cox, PhD, in her study "Estimated IQs of 301 Geniuses of the 15th - 19th Centuries," Napoleon Bonaparte's estimated IQ was 145.
It is important to note that these are not scores from direct IQ tests, as such tests did not exist during Napoleon's lifetime (1769-1821). Instead, Cox derived these estimates retrospectively based on biographical information and the achievements of historical figures.
Estimated IQs of Selected Historical Figures (from Cox's Study)
Below are a few examples from Cox's compilation, including Napoleon:
| Name | Dates | Corrected Est. IQ* |
|---|---|---|
| Mill, John Stuart | 1806-1873 | 180 |
| Napoleon Bonaparte | 1769-1821 | 145 |
| Newton, Isaac | 1642-1727 | 190 |
| Pascal, Blaise | 1623-1662 | 195 |
Note: These figures are based on retrospective analysis of historical records and accomplishments.
The method involves analyzing biographical data for indications of intellectual traits recognized by psychologists as components of intelligence. While providing a fascinating insight, these estimates are theoretical approximations rather than definitive measurements.
For further details on this study, you can consult the original source: Estimated IQs of 301 Geniuses of the 15th - 19th Centuries by Catharine Morris Cox, PhD
