Charles Xavier Thomas
✓ Source-basedfallingFrench computer pioneer (1785-1870)
Charles Xavier Thomas de Colmar was a French inventor and entrepreneur best known for designing, patenting, and manufacturing the first commercially successful mechanical calculator, known as the Arithmometer.
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About this person
Charles Xavier Thomas de Colmar was a French inventor and entrepreneur best known for designing, patenting, and manufacturing the first commercially successful mechanical calculator, known as the Arithmometer. Additionally, he founded the insurance companies Le Soleil and L'aigle, which, under his leadership, became the number one insurance group in France during the early years of the Second Empire.
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