Who is The Smartest Person in The World: Know About William James

Even though William James Sidis had an estimated IQ of 250 to 300, I'm rather certain you wouldn't be familiar with him.

The Smartest Person Ever? The Story of Office Clerk William James Sidis

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Is William James Sidis the smartest human? - Quora

Powerful Motivational Quotes and Stories William James Sidis Was The Smartest Man Who Ever Lived — But He Died A Low-Level Office Clerk..

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William James Sidis Is Likely the Smartest Man to Have Ever Lived