The 20 Most Genius People in the History with Highest IQs

5. James Maxwell was a Scottish mathematical physicist who is best known for formulating the classical theory of electromagnetic radiation. His estimated IQ scores range from 190 to 205 by different measures. Maxwell is credited with laying the foundations for quantum theory and was was revered by many, including Einstein. When Einstein was asked if he had stood on the shoulders of Newton, he replied: “No, I stand on Maxwell’s shoulders.”