Was William James Sidis the Smartest Person Who Has Ever Lived?

When he was just 5 years old, he could use a typewriter, and had learnt to speak Latin, Greek, Russian, French, German, and Hebrew. He applied for Harvard at the age of 6, but was denied admission. The university claimed the he was “too emotionally immature” at the time to allow him admission. However, when he was 11 years old, Harvard was forced to accept him

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