Louis de Jaucourt

French scholar and editor

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June 29, 2026

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Louis de Jaucourt was a French scholar and editor, primarily known for his significant contributions to the Encyclopédie in the 18th century. He is credited with writing approximately three-quarters of the articles in this monumental work, often with the assistance of secretaries.1

The Encyclopédie, edited by Denis Diderot and Jean Le Rond d'Alembert, aimed to compile and disseminate knowledge, challenging established ways of thinking and promoting independent inquiry. Jaucourt's extensive contributions were crucial to the Encyclopédie's goal of summarizing scientific and technological advancements, making it a pivotal work of the Enlightenment.21

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…that Diderot’s collaborator, the Chevalier Louis de Jaucourt (aided by secretaries), contributed about three-quarters of the articles in that work. The pattern for future encyclopaedias was established: for any substantial work, it would be necessary not only to have contributions from the experts of the day, but it would also…
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…that Diderot’s collaborator, the Chevalier Louis de Jaucourt (aided by secretaries), contributed about three-quarters of the articles in that work. The pattern for future encyclopaedias was established: for any substantial work, it would be necessary not only to have contributions from the experts of the day, but it would also…
Read More