William James Sidis: The Man Who Spoke 25 Languages - History of

And even created his own language

Who Has The Highest IQ - Discover Our Limitless Nature - memoryOS

Why did the most intelligent man in the world (William James Sidis) leave nothing relevant in the World of Mathematics or other disciplines? - Quora

Sidis Archives

The 40 Smartest People of All Time

William James - Wikipedia

Why did the most intelligent man in the world (William James Sidis) leave nothing relevant in the World of Mathematics or other disciplines? - Quora

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

William James Sidis

William James Sidis: the Tragic Story of the Smartest Person Ever Lived - Learning Mind

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

The High Cost of Being a Prodigy. His was possibly the highest IQ ever…, by Bill Abbate, ILLUMINATION

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

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

25 Highest IQ's Throughout History