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d'Ocagne Publishes the First Systematic Classification of Calculating Machines

1894
Title page of Ocagne's Le calcul simplifié
Image Source: babel.hathitrust.org

In 1894 Philbert Maurice d'Ocagne published Le Calcul simplifiée par procèdes mécaniques et graphiques. This contained the first systematic classification of calculating machines.

Timeline Themes

Data Processing / Computing
Knowledge Organization / Taxonomy / Encyclopedism
Computer & Calculator Design / Architecture
Graphics / Visualization / Computer Generated Imagery