Thales

ancient Greek philosopher and mathematician
Person human Q36303
Thales
Wilhelm Meyer · Public Domain · Wikimedia
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Thales

Summary

Thales is a human[1]. His place of birth was Miletus[2]. He was born on 650 BC[3]. He passed away in Miletus[4]. He died on 548 BC[5]. He worked as a mathematician[6], philosopher[7], astronomer[8], physicist[9], and engineer[10]. He ranks in the top 0.64% of human entities by monthly Wikipedia readership (3,653 views/month, #6,407 of 1,000,298).[11]

Key Facts

  • Thales's place of birth was Miletus[2].
  • Thales passed away in Miletus[4].
  • Thales was born on 650 BC[3].
  • Thales was born on 650 BC[12].
  • Thales was born on 640 BC[13].
  • Thales was born on 640 BC[14].
  • Thales was born on 639 BC[15].
  • Thales was born on 634 BC[16].
  • Thales died on 548 BC[5].
  • Thales died on 546 BC[17].
  • Thales died on 548 BC[18].
  • Thales died on 543 BC[19].
  • Thales died on 550 BC[20].
  • Thales died on 546 BC[21].
  • Thales's father was Examyas[22].
  • Thales's mother was Сleobulina[23].
  • Thales's professions included mathematician[6].
  • Thales's professions included philosopher[7].
  • Thales's professions included astronomer[8].
  • Thales's professions included physicist[9].
  • Thales worked as an engineer[10].
  • Thales worked as a writer[24].
  • Thales's field of work was philosophy[25].
  • Thales's field of work was mathematics[26].
  • A notable student of Thales was Anaximander[27].

Body

Origins and Family

Thales was born in Miletus[2]. Recorded date of birth include 650 BC[3], 640 BC[13], 639 BC[15], 634 BC[16], 630 BC[28], and 625 BC[29]. His father was Examyas[22]. His mother was Сleobulina[23].

Career and Affiliations

Recorded occupations include mathematician[6], philosopher[7], astronomer[8], physicist[9], engineer[10], and writer[24]. Fields of work include philosophy[25], an academic discipline[30] and mathematics[26], an academic discipline[31]. Notable students include Anaximander[27], a philosopher[32], -0620–-0547[33], of Miletus[34], specialised in philosophy[35] and Pythagoras[36], a mathematician[37], -0550–-0490[38], of Samos[39], specialised in geometry[40].

Works and Contributions

A notable work attributed to Thales is he' theorem[41]. Things named for him include intercept theorem[42], a theorem[43]; he' theorem[44], a theorem[45]; and he[46], a lunar crater[47].

Personal Life

Thales's religion is recorded as monism[48].

Death and Burial

Recorded date of death include 548 BC[5], 546 BC[17], 543 BC[19], 550 BC[20], 547 BC[49], and 545 BC[50]. Thales died in Miletus[4]. The cause of death was heat stroke[51].

Why It Matters

Thales ranks in the top 0.64% of human entities by monthly Wikipedia readership (3,653 views/month, #6,407 of 1,000,298).[11] He has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[52] He is known by 64 alternative names across languages and contexts.[53]

He has been cited as an influence by Pythagoras[54], a mathematician[55], -0550–-0490[56], of Samos[57], specialised in geometry[58] and Anaximander[59], a philosopher[60], -0620–-0547[61], of Miletus[62], specialised in philosophy[63].

He is credited with the discovery of deductive reasoning[64], a field of study[65]. Entities named for him include intercept theorem[42], a theorem[43]; he' theorem[44], a theorem[45]; and he[46], a lunar crater[47].

FAQs

Where was Thales born?

Thales was born in Miletus[2].

Where did Thales die?

Thales died in Miletus[4].

Who were Thales's parents?

Thales's father was Examyas[22]. Thales's mother was Сleobulina[23].

What did Thales do for work?

Thales worked as mathematician[6], philosopher[7], astronomer[8], physicist[9], and engineer[10].

Who did Thales influence?

Thales has been cited as an influence by Pythagoras[54] and Anaximander[59].

What did Thales discover?

Thales is credited as discoverer of deductive reasoning[64].

References

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

Direct Wikidata claims

  1. [2] . Thales. wikidata.org.
  2. [4] . wikidata.org.
  3. [22] . wikidata.org.
  4. [23] . wikidata.org.
  5. [25] . wikidata.org.
  6. [26] . wikidata.org.
  7. [6] . wikidata.org.
  8. [7] . The Cambridge Companion to Early Greek Philosophy. wikidata.org.
  9. [8] . wikidata.org.
  10. [9] . wikidata.org.
  11. [10] . wikidata.org.
  12. [24] . Library of the World's Best Literature. wikidata.org.
  13. [48] . wikidata.org.
  14. [51] . Lives and Opinions of Eminent Philosophers. wikidata.org.
  15. [3] . Q86851165. wikidata.org.
  16. [12] . Visuotinė lietuvių enciklopedija Online. Retrieved . wikidata.org.
  17. [13] . Great Russian Encyclopedia. Retrieved . wikidata.org.
  18. [14] . EB-11 / Thales of Miletus. wikidata.org.
  19. [15] . Thales. wikidata.org.
  20. [16] . Perseus Catalog. Retrieved . wikidata.org.
  21. [28] . Gran Enciclopèdia Catalana. Retrieved . wikidata.org.
  22. [29] . Biographical Encyclopedia of Astronomers. Retrieved . wikidata.org.
  23. [5] . Q21505001. wikidata.org.
  24. [17] . Thales. Retrieved . wikidata.org.
  25. [18] . Q21505000. wikidata.org.
  26. [19] . Q77318489. wikidata.org.
  27. [20] . Q86851165. wikidata.org.
  28. [21] . Perseus Catalog. Retrieved . wikidata.org.
  29. [49] . Biographical Encyclopedia of Astronomers. Retrieved . wikidata.org.
  30. [50] . Encyclopædia Britannica Online. Retrieved . wikidata.org.
  31. [41] . wikidata.org.
  32. [27] . wikidata.org.
  33. [36] . MacTutor History of Mathematics archive. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [54] . wikidata.org. → on this site
  2. [59] . wikidata.org. → on this site
  3. [64] . wikidata.org. → on this site
  4. [42] . wikidata.org. → on this site
  5. [44] . wikidata.org. → on this site
  6. [46] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [30] . Wikidata. wikidata.org. → on this site
  2. [31] . Wikidata. wikidata.org. → on this site
  3. [32] . Wikidata. wikidata.org. → on this site
  4. [33] . Wikidata. wikidata.org. → on this site
  5. [34] . Wikidata. wikidata.org. → on this site
  6. [35] . Wikidata. wikidata.org. → on this site
  7. [37] . Wikidata. wikidata.org. → on this site
  8. [38] . Wikidata. wikidata.org. → on this site
  9. [39] . Wikidata. wikidata.org. → on this site
  10. [40] . Wikidata. wikidata.org. → on this site
  11. [55] . Wikidata. wikidata.org. → on this site
  12. [56] . Wikidata. wikidata.org. → on this site
  13. [57] . Wikidata. wikidata.org. → on this site
  14. [58] . Wikidata. wikidata.org. → on this site
  15. [60] . Wikidata. wikidata.org. → on this site
  16. [61] . Wikidata. wikidata.org. → on this site
  17. [62] . Wikidata. wikidata.org. → on this site
  18. [63] . Wikidata. wikidata.org. → on this site
  19. [65] . Wikidata. wikidata.org. → on this site
  20. [43] . Wikidata. wikidata.org. → on this site
  21. [45] . Wikidata. wikidata.org. → on this site
  22. [47] . 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. [52] . Wikidata sitelinks. wikidata.org.
  3. [53] . Wikidata aliases. wikidata.org.

📑 Cite this page

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APA 4ort.xyz Knowledge Graph. (2026). Thales. Retrieved April 10, 2026, from https://4ort.xyz/entity/thales
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BibTeX @misc{4ortxyz_thales_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Thales}}, year = {2026}, url = {https://4ort.xyz/entity/thales}, note = {Accessed: 2026-04-10}}
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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. 1d ago · Epìdosis · 2026-05-20 view diff on Wikidata ↗
    Occupation mathematician, philosopher, astronomer +5
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32085|batch #32085]]: import P21 and P106 from GND (27)"
  2. 10d ago · Epìdosis · 2026-05-11 view diff on Wikidata ↗
    Parsifal cluster id 566350
    "/* wbsetclaim-create:1||1 */ [[Property:P12458]]: 566350, Matched to [[:toollabs:mix-n-match/#/entry/161455188|Thales (#161455188)]] in [[:toollabs:mix-n-match/#/catalog/6216|Parsifal persons]] #mix'n"
  3. 10d ago · JBradyK · 2026-05-10 view diff on Wikidata ↗
    Place of death Miletus
    Field of work
    Notable work
    Copyright status as a creator copyrights on works have expired
    + 30 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P7153]]: [[Q169460]], #quickstatements; #temporary_batch_1778423652304"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.