The 11 smartest people in the world: About William James Sidis

William James Sidis, considered the smartest man alive, is believed to have an IQ of between 250 and 300.

20 Amazing Polyglots in History That Most People Didn't Know About

The Prodigy: A Biography of William James by Wallace, Amy

20 Amazing Polyglots in History That Most People Didn't Know About

SMARTEST MAN IN HISTORY [ What Happened to William James Sidis?]

The life story of the most intelligent man in the world whose IQ was 300! - Free press

The sad story of the MOST INTELLIGENT MAN IN THE WORLD - Res Humana

Is William James Sidis the smartest human? - Quora

The Highest IQs Ever: Meet 27 Of The World's Smartest People

The Story of the Most Intelligent Man in the World - Exploring your mind

The Story of the Smartest Man Who Ever Lived and Why You Haven't Heard of Him / Bright Side

Bookride: The most intelligent man in the world