Émile Lemoine

French mathematician and civil engineer (1840–1912)
Person human Q286074
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Émile Lemoine

Summary

Émile Lemoine is a human[1]. He was born in Quimper[2]. He was born on November 22, 1840[3]. He died in Paris[4]. He died on December 21, 1912[5]. He worked as a mathematician[6], civil engineer[7], university teacher[8], violinist[9], and engineer[10]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (24 views/month, #7,291 of 1,000,298).[11]

Key Facts

  • Émile Lemoine was born in Quimper[2].
  • Émile Lemoine died in Paris[4].
  • Émile Lemoine was born on November 22, 1840[3].
  • Émile Lemoine died on December 21, 1912[5].
  • Émile Lemoine died on February 21, 1912[12].
  • Émile Lemoine held citizenship in France[13].
  • Émile Lemoine worked as a mathematician[6].
  • Émile Lemoine worked as a civil engineer[7].
  • Émile Lemoine worked as a university teacher[8].
  • Émile Lemoine worked as a violinist[9].
  • Émile Lemoine's professions included engineer[10].
  • Émile Lemoine's field of work was geometry[14].
  • Émile Lemoine's field of work was mathematics[15].
  • Émile Lemoine's field of work was civil engineering[16].
  • Émile Lemoine's field of work was geometrography[17].
  • Émile Lemoine held the position of editor[18].
  • Émile Lemoine was employed by École polytechnique[19].
  • Émile Lemoine was educated at Prytanée National Militaire[20].
  • Émile Lemoine was educated at École polytechnique[21].
  • Émile Lemoine's education included a stint at Special School of Architecture[22].
  • Émile Lemoine's doctoral advisor was Q366051[23].
  • A notable work attributed to Émile Lemoine is Lemoine point[24].
  • A notable work attributed to Émile Lemoine is Lemoine's conjecture[25].
  • A notable work attributed to Émile Lemoine is Lemoine's problem[26].
  • A notable work attributed to Émile Lemoine is Lemoine circle[27].

Body

Origins and Family

Émile Lemoine's place of birth was Quimper[2]. He was born on November 22, 1840[3].

Education

Educated at Prytanée National Militaire[20], a military school[28], in France[29], founded in 1604[30]; École polytechnique[21], a grande école[31], in France[32], founded in 1794[33], headquartered in Palaiseau[34]; and Special School of Architecture[22], an architecture school[35], in France[36], founded in 1865[37]. Émile Lemoine's doctoral advisor was Q366051[23].

Career and Affiliations

Recorded occupations include mathematician[6], civil engineer[7], university teacher[8], violinist[9], and engineer[10]. Fields of work include geometry[14], a branch of mathematics[38]; mathematics[15], an academic discipline[39]; civil engineering[16], a branch of engineering[40]; and geometrography[17], a branch of mathematics[41]. Among Émile Lemoine's employers was École polytechnique[19]. He held the position of editor[18].

Works and Contributions

Notable works include Lemoine point[24], a triangle center[42]; Lemoine's conjecture[25], a conjecture[43]; Lemoine's problem[26], a mathematical problem[44]; and Lemoine circle[27], a mathematical concept[45]. Things named for Émile Lemoine include Lemoine point[46], a triangle center[47]; Lemoine's conjecture[48], a conjecture[49]; and Lemoine circle[50], a mathematical concept[51].

Recognition

Awards received include Knight of the Legion of Honour[52], a grade of an order[53], in France[54] and Prix Francoeur[55], a mathematics award[56], in France[57], founded in 1882[58].

Death and Burial

Recorded date of death include December 21, 1912[5] and February 21, 1912[12]. Émile Lemoine passed away in Paris[4].

Why It Matters

Émile Lemoine ranks in the top 0.73% of human entities by monthly Wikipedia readership (24 views/month, #7,291 of 1,000,298).[11] He has Wikipedia articles in 14 language editions, a strong signal of global cultural recognition.[59] He is known by 19 alternative names across languages and contexts.[60]

Entities named for him include Lemoine point[46], a triangle center[47]; Lemoine's conjecture[48], a conjecture[49]; and Lemoine circle[50], a mathematical concept[51].

FAQs

Where was Émile Lemoine born?

Émile Lemoine's place of birth was Quimper[2].

Where did Émile Lemoine die?

Émile Lemoine died in Paris[4].

What did Émile Lemoine do for work?

Émile Lemoine worked as mathematician[6], civil engineer[7], university teacher[8], violinist[9], and engineer[10].

Where did Émile Lemoine go to school?

Émile Lemoine was educated at Prytanée National Militaire[20], École polytechnique[21], and Special School of Architecture[22].

What awards did Émile Lemoine receive?

Honors received include Knight of the Legion of Honour[52] and Prix Francoeur[55].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . MacTutor History of Mathematics archive. wikidata.org.
  2. [4] . MacTutor History of Mathematics archive. wikidata.org.
  3. [13] . wikidata.org.
  4. [18] . MacTutor History of Mathematics archive. wikidata.org.
  5. [20] . MacTutor History of Mathematics archive. wikidata.org.
  6. [21] . MacTutor History of Mathematics archive. wikidata.org.
  7. [22] . Retrieved . wikidata.org.
  8. [14] . wikidata.org.
  9. [15] . Czech National Authority Database. Retrieved . wikidata.org.
  10. [16] . wikidata.org.
  11. [17] . wikidata.org.
  12. [6] . wikidata.org.
  13. [7] . wikidata.org.
  14. [8] . wikidata.org.
  15. [9] . books.google.cat. books.google.cat. Provenance: wikidata.org.
  16. [10] . Czech National Authority Database. Retrieved . wikidata.org.
  17. [19] . wikidata.org.
  18. [52] . Léonore database. wikidata.org.
  19. [55] . Cosmos. wikidata.org.
  20. [23] . wikidata.org.
  21. [3] . BnF authorities. Retrieved . wikidata.org.
  22. [5] . Complete Dictionary of Scientific Biography. wikidata.org.
  23. [12] . MacTutor History of Mathematics archive. Retrieved . iiif.library.ethz.ch. Provenance: wikidata.org.
  24. [24] . wikidata.org.
  25. [25] . wikidata.org.
  26. [26] . wikidata.org.
  27. [27] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [46] . wikidata.org. → on this site
  2. [48] . wikidata.org. → on this site
  3. [50] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [36] . Wikidata. wikidata.org. → on this site
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [53] . Wikidata. wikidata.org. → on this site
  16. [54] . Wikidata. wikidata.org. → on this site
  17. [56] . Wikidata. wikidata.org. → on this site
  18. [57] . Wikidata. wikidata.org. → on this site
  19. [58] . Wikidata. wikidata.org. → on this site
  20. [42] . Wikidata. wikidata.org. → on this site
  21. [43] . Wikidata. wikidata.org. → on this site
  22. [44] . Wikidata. wikidata.org. → on this site
  23. [45] . Wikidata. wikidata.org. → on this site
  24. [47] . Wikidata. wikidata.org. → on this site
  25. [49] . Wikidata. wikidata.org. → on this site
  26. [51] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [11] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [59] . Wikidata sitelinks. wikidata.org.
  3. [60] . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Émile Lemoine. Retrieved April 10, 2026, from https://4ort.xyz/entity/mile-lemoine
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 10d ago · Epìdosis · 2026-05-20 view diff on Wikidata ↗
    Educated at Prytanée National Militaire, École polytechnique, Special School of Architecture
    Place of birth Quimper
    Languages spoken, written or signed French
    Position held editor
    + 26 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32083|batch #32083]]: import P21 and P106 from GND (25)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.