John Adams – IQ 155
John Adams, a Founding Father, diplomat, and writer, served as the 2nd president of the United States. He is best remembered as a significant political philosopher whose remarkable roles in drafting the Constitution and ending the Revolutionary War shaped US history.
However, his high IQ of 155 was not enough to make him stand out against his son, John Quincy Adams, who is remembered as possessing the greater mind of the two. John Adams senior did at least get to live a long and fruitful life, passing away at 90 years of age. Could there be a correlation between longevity and high IQ?