Al-Kindi

Muslim Arab philosopher, mathematician and physician (c.801–873)
Person human Q179759
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Al-Kindi

Summary

Al-Kindi is a human[1]. His place of birth was Kufa[2]. He was born on January 1, 801[3]. He passed away in Baghdad[4]. He died on January 1, 870[5]. He worked as a philosopher[6], mathematician[7], cryptologist[8], astronomer[9], and physician[10]. He ranks in the top 0.69% of human entities by monthly Wikipedia readership (914 views/month, #6,939 of 1,000,298).[11]

Key Facts

  • Al-Kindi was born in Kufa[2].
  • Al-Kindi died in Baghdad[4].
  • Al-Kindi was born on January 1, 801[3].
  • Al-Kindi was born on 800[12].
  • Al-Kindi was born on 796[13].
  • Al-Kindi died on January 1, 870[5].
  • Al-Kindi held citizenship in Abbasid Caliphate[14].
  • Arabic was Al-Kindi's native language[15].
  • Al-Kindi worked as a philosopher[6].
  • Al-Kindi worked as a mathematician[7].
  • Al-Kindi's professions included cryptologist[8].
  • Al-Kindi's professions included astronomer[9].
  • Al-Kindi's professions included physician[10].
  • Al-Kindi's professions included music theorist[16].
  • Al-Kindi's field of work was mathematics[17].
  • Al-Kindi's field of work was philosophy[18].
  • Al-Kindi's field of work was Islamic theology[19].
  • Al-Kindi's field of work was logic[20].
  • Al-Kindi's field of work was ethics[21].
  • Al-Kindi's field of work was physics[22].
  • Among Al-Kindi's employers was House of Wisdom[23].
  • A notable student of Al-Kindi was Abu Ma'shar al-Balkhi[24].
  • A notable student of Al-Kindi was Abu Zayd al-Balkhi[25].
  • A notable student of Al-Kindi was Ahmad ibn al-Tayyib al-Sarakhsi[26].
  • A notable work attributed to Al-Kindi is Q19455250[27].

Body

Origins and Family

Al-Kindi was born in Kufa[2]. Recorded date of birth include January 1, 801[3], 800[12], and 796[13]. Arabic was his native language[15].

Career and Affiliations

Recorded occupations include philosopher[6], mathematician[7], cryptologist[8], astronomer[9], physician[10], and music theorist[16]. Fields of work include mathematics[17], an academic discipline[28]; philosophy[18], an academic discipline[29]; Islamic theology[19], a confessional aspect[30]; logic[20], a class used in Universal Decimal Classification[31]; ethics[21], a branch of philosophy[32]; and physics[22], a branch of science[33]. Al-Kindi was employed by House of Wisdom[23]. Notable students include Abu Ma'shar al-Balkhi[24], Abu Zayd al-Balkhi[25], and Ahmad ibn al-Tayyib al-Sarakhsi[26].

Works and Contributions

Notable works include Q19455250[27], a literary work[34]; Q19497982[35], a literary work[36]; De Gradibus[37], a version, edition or translation[38], founded in 0850[39]; Q19497987[40], a literary work[41]; Q19498040[42]; and On the Intellect[43].

Personal Life

Al-Kindi's religion is recorded as Islam[44].

Death and Burial

Al-Kindi died on January 1, 870[5]. He died in Baghdad[4].

Why It Matters

Al-Kindi ranks in the top 0.69% of human entities by monthly Wikipedia readership (914 views/month, #6,939 of 1,000,298).[11] He has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[45] He is known by 57 alternative names across languages and contexts.[46]

He has been cited as an influence by Thomas Aquinas[47], a theologian[48], 1225–1274[49], specialised in philosophy[50]; Avicenna[51], a philosopher[52], 0980–1037[53], specialised in medicine[54]; Ibn Miskawayh[55], a philosopher[56], 0932–1030[57], of Buyid dynasty[58], specialised in theology[59]; Isaac ben Solomon al-Israeli[60], a physician[61], 0832–0932[62], of Fatimid Caliphate[63], specialised in philosophy[64]; and Ibn Habal[65], a physician[66], 1122–1213[67].

He is credited with the discovery of substitution cipher[68] and frequency analysis[69], a type of cryptographic attack[70]. Works attributed to him include De Gradibus[71], a version, edition or translation[72], founded in 0850[73].

FAQs

Where was Al-Kindi born?

Born in Kufa[2], Al-Kindi…

Where did Al-Kindi die?

Al-Kindi died in Baghdad[4].

What did Al-Kindi do for work?

Al-Kindi worked as philosopher[6], mathematician[7], cryptologist[8], astronomer[9], and physician[10].

Who did Al-Kindi influence?

Al-Kindi has been cited as an influence by Thomas Aquinas[47], Avicenna[51], Ibn Miskawayh[55], and Isaac ben Solomon al-Israeli[60].

What did Al-Kindi discover?

Al-Kindi is credited as discoverer of substitution cipher[68] and frequency analysis[69].

References

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

Direct Wikidata claims

  1. [2] . Q113226778. google.fr. Provenance: wikidata.org.
  2. [4] . Integrated Authority File. Retrieved . wikidata.org.
  3. [14] . wikidata.org.
  4. [17] . wikidata.org.
  5. [18] . wikidata.org.
  6. [19] . wikidata.org.
  7. [20] . wikidata.org.
  8. [21] . wikidata.org.
  9. [22] . wikidata.org.
  10. [15] . wikidata.org.
  11. [6] . wikidata.org.
  12. [7] . wikidata.org.
  13. [8] . wikidata.org.
  14. [9] . wikidata.org.
  15. [10] . wikidata.org.
  16. [16] . wikidata.org.
  17. [23] . wikidata.org.
  18. [44] . wikidata.org.
  19. [3] . Integrated Authority File. Retrieved . wikidata.org.
  20. [12] . google.fr. google.fr. Provenance: wikidata.org.
  21. [13] . Q113226778. wikidata.org.
  22. [5] . OpenITI corpus. wikidata.org.
  23. [27] . wikidata.org.
  24. [35] . wikidata.org.
  25. [37] . wikidata.org.
  26. [40] . wikidata.org.
  27. [42] . wikidata.org.
  28. [43] . wikidata.org.
  29. [24] . Q113226778. wikidata.org.
  30. [25] . plato.stanford.edu. Retrieved . plato.stanford.edu. Provenance: wikidata.org.
  31. [26] . History of philosophy in Islam. wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [47] . wikidata.org. → on this site
  2. [51] . wikidata.org. → on this site
  3. [55] . wikidata.org. → on this site
  4. [60] . wikidata.org. → on this site
  5. [65] . wikidata.org. → on this site
  6. [68] . wikidata.org. → on this site
  7. [69] . wikidata.org. → on this site
  8. [71] . 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. [36] . Wikidata. wikidata.org. → on this site
  9. [38] . Wikidata. wikidata.org. → on this site
  10. [39] . Wikidata. wikidata.org. → on this site
  11. [41] . Wikidata. wikidata.org. → on this site
  12. [48] . Wikidata. wikidata.org. → on this site
  13. [49] . Wikidata. wikidata.org. → on this site
  14. [50] . Wikidata. wikidata.org. → on this site
  15. [52] . Wikidata. wikidata.org. → on this site
  16. [53] . Wikidata. wikidata.org. → on this site
  17. [54] . Wikidata. wikidata.org. → on this site
  18. [56] . Wikidata. wikidata.org. → on this site
  19. [57] . Wikidata. wikidata.org. → on this site
  20. [58] . Wikidata. wikidata.org. → on this site
  21. [59] . Wikidata. wikidata.org. → on this site
  22. [61] . Wikidata. wikidata.org. → on this site
  23. [62] . Wikidata. wikidata.org. → on this site
  24. [63] . Wikidata. wikidata.org. → on this site
  25. [64] . Wikidata. wikidata.org. → on this site
  26. [66] . Wikidata. wikidata.org. → on this site
  27. [67] . Wikidata. wikidata.org. → on this site
  28. [70] . Wikidata. wikidata.org. → on this site
  29. [72] . Wikidata. wikidata.org. → on this site
  30. [73] . 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. [45] . Wikidata sitelinks. wikidata.org.
  3. [46] . Wikidata aliases. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Al-Kindi. Retrieved April 10, 2026, from https://4ort.xyz/entity/al-kindi
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BibTeX @misc{4ortxyz_al-kindi_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Al-Kindi}}, year = {2026}, url = {https://4ort.xyz/entity/al-kindi}, note = {Accessed: 2026-04-10}}
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  1. 5d ago · Epìdosis · 2026-05-15 view diff on Wikidata ↗
    Cerl thesaurus id cnp00401770
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  2. 8d ago · Epìdosis · 2026-05-12 view diff on Wikidata ↗
    Cerl thesaurus id cnp00401770
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  3. 13d ago · Bargioni · 2026-05-07 view diff on Wikidata ↗
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    + 1 other property edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/30465|batch #30465]]: add P1810 to P5739 1/3"
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