Jean-Charles de Borda
French scientist, political advisor and sailor (1733-1799)
Jean-Charles, chevalier de Borda (4 May 1733 – 19 February 1799) was a French mathematician, physicist, and Navy officer. He invented the Borda count system for elections, which served as basis to other voting systems. He is also known for the Borda–Carnot equation in fluid dynamics and his instruments to define the metre based on the arc measurement of Delambre and Méchain.
Biography
Early years and education
Borda was born in the city of Dax to Jean‐Antoine de Borda and Jeanne‐Marie Thérèse de Lacroix.
In 1756, Borda wrote Mémoire sur le mouvement des projectiles, a product of his work as a military engineer. For that, he was elected to the French Academy of Sciences in 1764.
American Revolutionary War
Borda was a mariner and a scientist, spending time in the Caribbean testing out advances in chronometers. Between 1777 and 1778, he participated in the American Revolutionary War. In 1781, he was put in charge of several vessels in the French Navy. In 1782, he was captured by the English, and was returned to France shortly after.
The public source identifies “Jean-Charles de Borda” as french scientist, political advisor and sailor (1733-1799). This brief keeps that definition visible, then builds a research path around Jean-Charles, Borda and French.
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Aug 29, 2026. The linked authority identifier is Q369762. VIAF identifies the subject as 29634659. The Library of Congress control number is n50067185. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1733, 1799, 1756 and 1764.
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This entry incorporates text from “Jean-Charles de Borda” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.