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

And even created his own language

Was William J. Sidis one of the Kybalion's initiates? A travel trough the concept of One

Smartest Person in the World 2023 - Top 10 [with IQs Ranked] - News

The Animate and The Inanimate by William James Sidis

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

Who was William James Sidis?, Trivia Questions

William James Sidis Biography

The Prodigy: A Biography of William James Sidis, America's Greatest Child Prodigy by Amy Wallace

Bookride: The most intelligent man in the world

Bookride: The most intelligent man in the world

16 of the Smartest Children in History

Happy Birthday William James Sidis, child prodigy and genius born April 1, 1898. (William James the philosopher was his godfather and namesake). Sidis shunned academia, fame and the press which had antagonized

25 Highest IQ's Throughout History