János Bolyai

Hungarian mathematician (1802–1860)
Person human Q16924
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Summary

János Bolyai was born on December 15, 1802[1], in Cluj-Napoca[2]. He died on January 27, 1860[3], in Târgu Mureș[4]. He worked as a mathematician[5]. He ranks in the top 0.72% of human entities by monthly Wikipedia readership (984 views/month, #7,214 of 1,000,298).[6]

Key Facts

  • Place of burial: Reformed Protestant cemetery[7]
  • Father: Farkas Bolyai[8]
  • Country of citizenship: Austrian Empire[9]
  • Field of work: geometry[10], non-Euclidean geometry[11], mathematics[12]
  • Employer: Imperial Austrian Army[13]
  • Educated at: Theresian Military Academy[14], Reformed School, Târgu Mureș[15]
  • Doctoral advisor: Farkas Bolyai[16]
  • Notable work: non-Euclidean geometry[17]
  • Sex or gender: male[18]
  • Commons category: János Bolyai[19]
  • Cause of death: pneumonia[20]
  • Residence: Transylvania[21], Domáld[22]
  • Family name: Bolyai[23]
  • Given name: János[24]
  • Topic's main category: Category:János Bolyai[25]
  • Commons gallery: János Bolyai[26]
  • Manner of death: natural causes[27]
  • Languages spoken, written or signed: Latin[28], Tibetan[29], Chinese[30], Hungarian[31], German[32]
  • Birth name: Bolyai János[33]
  • Name in native language: Bolyai János[34]

Body

Works and Contributions

Things named for János Bolyai include hyperbolic geometry[35], a branch of mathematics[36]; Babeș-Bolyai University[37], a university[38], in Romania[39], founded in 1776[40]; Bolyai Prize[41], an award[42], in Hungary[43]; 1441 Bolyai[44], an asteroid[45]; Bolyai[46], a lunar crater[47]; and János-Bolyai prize[48], an award[49], in Hungary[50].

Why It Matters

János Bolyai has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[51] He is known by 35 alternative names across languages and contexts.[52]

He is credited with the discovery of hyperbolic geometry[53], a branch of mathematics[54]. Entities named for him include hyperbolic geometry[35], a branch of mathematics[36]; Babeș-Bolyai University[37], a university[38], in Romania[39], founded in 1776[40]; Bolyai Prize[41], an award[42], in Hungary[43]; 1441 Bolyai[44], an asteroid[45]; Bolyai[46], a lunar crater[47]; and János-Bolyai prize[48], an award[49], in Hungary[50].

FAQs

Where was János Bolyai born?

János Bolyai was born in Cluj-Napoca[2].

Where did János Bolyai die?

János Bolyai died in Târgu Mureș[4].

Who were János Bolyai's parents?

János Bolyai's father was Farkas Bolyai[8].

What did János Bolyai do for work?

János Bolyai worked as a mathematician[5].

Where did János Bolyai go to school?

János Bolyai was educated at Theresian Military Academy[14] and Reformed School, Târgu Mureș[15].

What did János Bolyai discover?

János Bolyai is credited as discoverer of hyperbolic geometry[53].

References

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

Direct Wikidata claims

  1. [2] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  2. [4] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  3. [18] ↑ . BnF authorities. Retrieved . wikidata.org.
  4. [8] ↑ . wikidata.org.
  5. [9] ↑ . wikidata.org.
  6. [14] ↑ . MacTutor History of Mathematics archive. gdz.sub.uni-goettingen.de. Provenance: wikidata.org.
  7. [15] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  10. [12] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  11. [5] ↑ . wikidata.org.
  12. [13] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  13. [7] ↑ . Google Maps. wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [19] ↑ . wikidata.org.
  16. [20] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  17. [21] ↑ . wikidata.org.
  18. [22] ↑ . MacTutor History of Mathematics archive. wikidata.org.
  19. [1] ↑ . BnF authorities. Retrieved . wikidata.org.
  20. [3] ↑ . BnF authorities. Retrieved . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [17] ↑ . wikidata.org.
  24. [25] ↑ . wikidata.org.
  25. [26] ↑ . wikidata.org.
  26. [27] ↑ . wikidata.org.
  27. [28] ↑ . BnF authorities. Retrieved . wikidata.org.
  28. [29] ↑ . wikidata.org.
  29. [30] ↑ . wikidata.org.
  30. [31] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  31. [32] ↑ . CONOR.SI. wikidata.org.
  32. [33] ↑ . wikidata.org.
  33. [34] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [53] ↑ . wikidata.org. → on this site
  2. [35] ↑ . wikidata.org. → on this site
  3. [37] ↑ . wikidata.org. → on this site
  4. [41] ↑ . wikidata.org. → on this site
  5. [44] ↑ . wikidata.org. → on this site
  6. [46] ↑ . wikidata.org. → on this site
  7. [48] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [54] ↑ . Wikidata. wikidata.org. → on this site
  2. [36] ↑ . Wikidata. wikidata.org. → on this site
  3. [38] ↑ . Wikidata. wikidata.org. → on this site
  4. [39] ↑ . Wikidata. wikidata.org. → on this site
  5. [40] ↑ . Wikidata. wikidata.org. → on this site
  6. [42] ↑ . Wikidata. wikidata.org. → on this site
  7. [43] ↑ . Wikidata. wikidata.org. → on this site
  8. [45] ↑ . Wikidata. wikidata.org. → on this site
  9. [47] ↑ . Wikidata. wikidata.org. → on this site
  10. [49] ↑ . Wikidata. wikidata.org. → on this site
  11. [50] ↑ . Wikidata. wikidata.org. → on this site

Aggregate / graph-position facts

  1. [6] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [51] ↑ . Wikidata sitelinks. wikidata.org.
  3. [52] ↑ . Wikidata aliases. wikidata.org.

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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. 3d ago · AntiDerangedKhanTengriAction · 2026-10-14 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'arz', 'az', 'azb', 'be', 'bg', 'bn', 'ca', 'commons', 'cs', 'de', 'el',
    Open library id → OL1683374A, OL6798922A
    Claims rich → —
    "/* wbcreateclaim-create:1| */ Open library id: OL6798922A, [[:toollabs:quickstatements/#/batch/290734|batch #290734]]"
  2. 14w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 1p0ohb
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  3. 16w ago · Printstream · 2026-06-25 view diff on Wikidata ↗
    P14536 → 403970
    "/* wbcreateclaim-create:1| */ P14536: 403970, #quickstatements; #temporary_batch_1782398664614"
  4. 19w ago · Bargioni · 2026-06-01 view diff on Wikidata ↗
    Citizenship → —
    Cause of death → pneumonia
    Languages spoken, written or signed → Latin, Tibetan, Chinese +2
    Image needs reharvest → —
    + 28 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/34352|batch #34352]]: add P1810 to P8034"
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