d'Ocagne Publishes the First Systematic Classification of Calculating Machines

1894
Detail map of Paris, Île-de-France, France Overview map of Paris, Île-de-France, France

A: Paris, Île-de-France, France

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