History: Supposedly the Smartest Man in the World Ever!, M.M. Montoya

William James Sidis is supposedly the world's ever smartest man, a genius like no other geniuses even making Einstein and Elon Musk look dumb. William was an American child prodigy who seemed to have been born with exceptional mathematical and language skills. He is notable for his 1920 book called, The Animate and Inanimate, in which he provides his opinion about the origin of life as seen through the science of thermodynamics.

24 of the smartest people who ever lived - Big Think

History: Supposedly the Smartest Man in the World Ever!

24 of the smartest people who ever lived - Big Think

24 of the smartest people who ever lived - Big Think

The world's smartest people of all time revealed

The world's smartest people of all time revealed

The 40 Smartest People of All Time

The 40 Smartest People of All Time

Renee Montoya, DC Animated Universe

Who is the smartest human being that's ever lived? - Quora