Theaetetus

Greek mathematician (c.417–c. 369 BCE)
Person human Q920912
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Theaetetus

Summary

Theaetetus is a human[1]. His place of birth was Athens[2]. He was born on -0416-01-01T00:00:00Z[3]. He died in Athens[4]. He died on -0369-01-01T00:00:00Z[5]. He worked as a mathematician[6] and philosopher[7]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (31 views/month, #7,270 of 1,000,298).[8]

Key Facts

  • Theaetetus was born in Athens[2].
  • Theaetetus passed away in Athens[4].
  • Theaetetus was born on -0416-01-01T00:00:00Z[3].
  • Theaetetus was born on -0417-00-00T00:00:00Z[9].
  • Theaetetus died on -0369-01-01T00:00:00Z[5].
  • Theaetetus held citizenship in Classical Athens[10].
  • Theaetetus's professions included mathematician[6].
  • Theaetetus's professions included philosopher[7].
  • Theaetetus's field of work was mathematics[11].
  • Theaetetus is recorded as male[12].
  • Theaetetus's instance of is recorded as human[13].
  • Theaetetus's ISNI is recorded as 0000000051108522[14].
  • Theaetetus's VIAF cluster ID is recorded as 29367789[15].
  • Theaetetus's VIAF cluster ID is recorded as 6662159248146604870009[16].
  • Theaetetus's VIAF cluster ID is recorded as 175145542426296640612[17].
  • Theaetetus's GND ID is recorded as 119176688[18].
  • Theaetetus's Library of Congress authority ID is recorded as no2009006261[19].
  • Theaetetus's IdRef ID is recorded as 243189354[20].
  • Theaetetus's Freebase ID is recorded as /m/05r3g8[21].
  • Theaetetus's Nationale Thesaurus voor Auteursnamen ID is recorded as 125803141[22].
  • Theaetetus studied under Theodoros of Cyrene[23].
  • Theaetetus's described by source is recorded as Pauly–Wissowa[24].
  • Theaetetus's languages spoken, written or signed is recorded as Ancient Greek[25].
  • Theaetetus's Encyclopædia Britannica Online ID is recorded as biography/Theaetetus[26].
  • Theaetetus's Sandrart.net person ID is recorded as 2379[27].

Body

Origins and Family

Theaetetus was born in Athens[2]. Recorded date of birth include -0416-01-01T00:00:00Z[3] and -0417-00-00T00:00:00Z[9].

Education

Theaetetus studied under Theodoros of Cyrene[23].

Career and Affiliations

Recorded occupations include mathematician[6] and philosopher[7]. Theaetetus's field of work was mathematics[11].

Death and Burial

Theaetetus died on -0369-01-01T00:00:00Z[5]. He died in Athens[4].

Works and Contributions

Things named for Theaetetus include he[28], a written work[29], written by Plato[30].

Why It Matters

Theaetetus ranks in the top 0.73% of human entities by monthly Wikipedia readership (31 views/month, #7,270 of 1,000,298).[8] He has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[31] He is known by 7 alternative names across languages and contexts.[32]

Entities named for him include he[28], a written work[29], written by Plato[30].

FAQs

Where was Theaetetus born?

Born in Athens[2], Theaetetus…

Where did Theaetetus die?

Theaetetus died in Athens[4].

What did Theaetetus do for work?

Theaetetus worked as mathematician[6] and philosopher[7].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . MacTutor History of Mathematics archive. wikidata.org.
  3. [12] . wikidata.org.
  4. [10] . wikidata.org.
  5. [13] . wikidata.org.
  6. [11] . wikidata.org.
  7. [6] . wikidata.org.
  8. [7] . wikidata.org.
  9. [14] . wikidata.org.
  10. [15] . wikidata.org.
  11. [16] . wikidata.org.
  12. [17] . wikidata.org.
  13. [18] . wikidata.org.
  14. [19] . wikidata.org.
  15. [20] . Virtual International Authority File. Retrieved . wikidata.org.
  16. [3] . wikidata.org.
  17. [9] . MacTutor History of Mathematics archive. wikidata.org.
  18. [5] . MacTutor History of Mathematics archive. wikidata.org.
  19. [21] . Freebase Data Dumps. wikidata.org.
  20. [22] . Virtual International Authority File. Retrieved . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [28] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [29] . Wikidata. wikidata.org. → on this site
  2. [30] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [8] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [31] . Wikidata sitelinks. wikidata.org.
  3. [32] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Theaetetus. Retrieved April 10, 2026, from https://4ort.xyz/entity/theaetetus
MLA “Theaetetus.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/theaetetus.
BibTeX @misc{4ortxyz_theaetetus_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Theaetetus}}, year = {2026}, url = {https://4ort.xyz/entity/theaetetus}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Theaetetus — https://4ort.xyz/entity/theaetetus (retrieved 2026-04-10)

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