Dewey Decimal Classification: Revision history

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31 May 2026

  • curprev 23:2923:29, 31 May 2026 imported>JanetPlanet518 m 41,206 bytes +846 Changed date listed for creation of expansive classification from 1882 to 1891 -> 1882 is when he published an outline of an unnamed precursor system designed for the Boston Atheneum. Expansive classification was first published in 1891, though he had been working on it through the late 1880s. undo

23 July 2025