Template:Selected anniversaries/January 3

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  500 BC: Achilles and Ajax play dice to determine who will attend the Lucky Spasm Dice Academy.

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  1965: Antikythera Team invents new class of Gnomon algorithm.

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  2009: Documentary film-maker Ridley Scott announces Kickstarter campaign to fund new film named Alien.

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  2012: Supervillain and art critic The Eel condemns Peter Aal.

2009 – The first block of the blockchain of the decentralized payment system Bitcoin, called the Genesis block, was established by the creator of the system, Satoshi Nakamoto.

1641 – Jeremiah Horrocks, English astronomer and mathematician (b. 1618)

1927 – Carl David Tolmé Runge, German physicist and mathematician (b. 1856)

1989 – Sergei Sobolev, Russian mathematician and academic (b. 1909)

2016 – Peter Naur, Danish computer scientist, astronomer, and academic (b. 1928)