Template:Selected anniversaries/February 2

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  525 BC: Heracles defends himself after sneak attack by supervillain Gnotilus.

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  1642: Mathematician John Pell invents new type of scrying engine, forecasts death of Bertrand Russell.

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  1876: Mathematician Thomas Joannes Stieltjes uses Gnomon algorithm to discover new class of continued fractions.

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  1905: Writer and philosopher Ayn Rand born.

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  1970: Philosopher, logician, mathematician, historian, writer, social critic and political activist Bertrand Russell dies.