Template:Selected anniversaries/February 20

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  1973: John Brunner accuses Killer Poke of infecting "Hello World" program with Extract of Radium.

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  1974: "Hello World" computer program from 1974 proud to represent "Hello World" computer programs everywhere.

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  1974: Color Commentator's Union supports goals of "Hello World" Programmers Union.

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  1979: Hilbert curve hires "Hello World" for internship program.

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  1982: New class of Fantasy Voronoi diagrams uses Gnomon algorithm to compute record-breaking profits.