Who was the smartest person that lived?
William James Sidis was quite possibly the smartest man who ever lived. Born in Boston in 1898, William James Sidis made the headlines in the early 20th century as a child prodigy with an amazing intellect. His IQ was estimated to be 50 to 100 points higher than Albert Einstein's 160.
Join Alexa Answers
Help make Alexa smarter and share your knowledge with the worldLEARN MORE