Karl Popper

Austrian-British philosopher of science and social and política e falsificationism and for criticism of Plato, Hegel and Marx as totalitarian opponents of open society (1902-1994)
Person human Q81244
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Karl Popper

Summary

Karl Popper is a human[1]. His place of birth was Vienna[2]. He passed away in Kenley[3]. He worked as a philosopher[4], philosopher of science[5], writer[6], university teacher[7], and sociologist[8]. He ranks in the top 0.66% of human entities by monthly Wikipedia readership (26,243 views/month, #6,571 of 1,000,298).[9]

Key Facts

  • Karl Popper's place of birth was Vienna[2].
  • Karl Popper passed away in Kenley[3].
  • Burial took place at mortuary Lainzer Friedhof[10].
  • Karl Popper's father was Simon Siegmund Carl Popper[11].
  • Karl Popper's mother was Jenny Popper[12].
  • Karl Popper was married to Josefine Anna Henninger[13].
  • Karl Popper held citizenship in Cisleithania[14].
  • Karl Popper held citizenship in Austria[15].
  • Karl Popper held citizenship in United Kingdom[16].
  • Karl Popper held citizenship in United Kingdom of Great Britain and Ireland[17].
  • Karl Popper is identified as part of the Jewish people ethnic group[18].
  • Karl Popper's professions included philosopher[4].
  • Karl Popper worked as a philosopher of science[5].
  • Karl Popper's professions included writer[6].
  • Karl Popper's professions included university teacher[7].
  • Karl Popper's professions included sociologist[8].
  • Karl Popper worked as a mathematician[19].
  • Karl Popper's field of work was philosophy[20].
  • Karl Popper's field of work was epistemology[21].
  • Karl Popper's field of work was rationality[22].
  • Karl Popper's field of work was philosophy of science[23].
  • Karl Popper's field of work was logic[24].
  • Karl Popper's field of work was political philosophy[25].
  • Karl Popper was employed by University of Canterbury[26].
  • Among Karl Popper's employers was London School of Economics and Political Science[27].

Body

Origins and Family

Karl Popper was born in Vienna[2]. His father was Simon Siegmund Carl Popper[11]. His mother was Jenny Popper[12]. He is identified as part of the Jewish people ethnic group[18].

Education

Educated at University of Vienna[28], a university[29], in Austria[30], founded in 1365[31], headquartered in Vienna[32] and University of Cambridge[33], a collegiate university[34], in United Kingdom[35], founded in 1209[36], headquartered in Cambridge[37]. Doctoral advisors include Karl Bühler[38] and Moritz Schlick[39].

Career and Affiliations

Recorded occupations include philosopher[4], philosopher of science[5], writer[6], university teacher[7], sociologist[8], and mathematician[19]. Fields of work include philosophy[20], an academic discipline[40]; epistemology[21], a branch of philosophy[41]; rationality[22]; philosophy of science[23], a branch of philosophy[42]; logic[24], a class used in Universal Decimal Classification[43]; and political philosophy[25], a branch of philosophy[44]. Employers include University of Canterbury[26], a university[45], in New Zealand[46], founded in 1873[47]; London School of Economics and Political Science[27], a public research university[48], in United Kingdom[49], founded in 1895[50], headquartered in London[51]; King's College London[52], a public research university[53], in United Kingdom[54], founded in 1829[55], headquartered in London[56]; and University of London[57], a university[58], in United Kingdom[59], founded in 1836[60], headquartered in London[61]. Doctoral students include A. I. Sabra[62] and Charles Leonard Hamblin[63].

Recognition

Awards received include Pour le Mérite for Sciences and Arts order[64], Ring of Honour of the City of Vienna[65], Great Golden Medal of Honour for Services to the Republic of Austria[66], Great Cross with Star and Sash of the Order of Merit of the Federal Republic of Germany[67], Otto Hahn Peace Medal[68], and Catalonia International Prize[69].

Personal Life

Karl Popper was married to Josefine Anna Henninger[13]. His religion is recorded as Lutheranism[70].

Death and Burial

Karl Popper died in Kenley[3]. Burial took place at mortuary Lainzer Friedhof[10].

Why It Matters

Karl Popper ranks in the top 0.66% of human entities by monthly Wikipedia readership (26,243 views/month, #6,571 of 1,000,298).[9] He has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[71] He is known by 86 alternative names across languages and contexts.[72]

He has been cited as an influence by Stephen Hawking[73], a theoretical physicist[74], 1942–2018[75], of United Kingdom[76], awarded the Albert Einstein Medal[77], specialised in general relativity[78]; Mario Vargas Llosa[79], a novelist[80], 1936–2025[81], of Peru[82], awarded the Nobel Prize in Literature[83], specialised in literature[84]; Yeshayahu Leibowitz[85], a biochemist[86], 1903–1994[87], of Israel[88], specialised in philosophy[89]; Peter Cathcart Wason[90], a psychologist[91], 1924–2003[92], of United Kingdom[93]; and Eric Scerri[94], a chemist[95], b. 1953[96], of United States[97].

He is credited with the discovery of Popper's experiment[98], a thought experiment[99]. Works attributed to him include paradox of tolerance[100]; The Open Society and Its Enemies[101], a written work[102]; The Logic of Scientific Discovery[103], a literary work[104]; The Poverty of Historicism[105]; and Conjectures and Refutations[106].

His notable doctoral advisees include Charles Leonard Hamblin[107] and A. I. Sabra[108].

FAQs

Where was Karl Popper born?

Born in Vienna[2], Karl Popper…

Where did Karl Popper die?

Karl Popper passed away in Kenley[3].

Who were Karl Popper's parents?

Karl Popper's father was Simon Siegmund Carl Popper[11]. Karl Popper's mother was Jenny Popper[12].

Who was Karl Popper married to?

Karl Popper's spouses include Josefine Anna Henninger[13].

What did Karl Popper do for work?

Karl Popper worked as philosopher[4], philosopher of science[5], writer[6], university teacher[7], and sociologist[8].

Where did Karl Popper go to school?

Karl Popper was educated at University of Vienna[28], University of Cambridge[33], and University of Vienna[109].

What awards did Karl Popper receive?

Honors received include Pour le Mérite for Sciences and Arts order[64], Ring of Honour of the City of Vienna[65], Great Golden Medal of Honour for Services to the Republic of Austria[66], and Great Cross with Star and Sash of the Order of Merit of the Federal Republic of Germany[67].

Who did Karl Popper influence?

Karl Popper has been cited as an influence by Stephen Hawking[73], Mario Vargas Llosa[79], Yeshayahu Leibowitz[85], and Peter Cathcart Wason[90].

What did Karl Popper discover?

Karl Popper is credited as discoverer of Popper's experiment[98].

References

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

Direct Wikidata claims

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  2. [3] . wikidata.org.
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Inverse relationships (entities pointing at this one)

  1. [73] . wikidata.org. → on this site
  2. [79] . wikidata.org. → on this site
  3. [85] . wikidata.org. → on this site
  4. [90] . wikidata.org. → on this site
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  6. [98] . wikidata.org. → on this site
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  11. [106] . wikidata.org. → on this site
  12. [107] . wikidata.org. → on this site
  13. [108] . wikidata.org. → on this site

Inline context (facts about related entities)

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Class ancestry

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

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [71] . Wikidata sitelinks. wikidata.org.
  3. [72] . 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). Karl Popper. Retrieved April 10, 2026, from https://4ort.xyz/entity/karl-popper
MLA “Karl Popper.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/karl-popper.
BibTeX @misc{4ortxyz_karl-popper_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Karl Popper}}, year = {2026}, url = {https://4ort.xyz/entity/karl-popper}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Karl Popper — https://4ort.xyz/entity/karl-popper (retrieved 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 · Gerwoman · 2026-09-19 view diff on Wikidata ↗
    Sancho el sabio foundation id 13537
    "/* wbsetclaim-create:1||1 */ [[Property:P13804]]: 13537, Matched to [[:toollabs:mix-n-match/#/entry/285258351|Karl Raimund Popper (#285258351)]] in [[:toollabs:mix-n-match/#/catalog/7873|Sancho el Sab"
  2. 10d ago · Xezbeth · 2026-09-10 view diff on Wikidata ↗
    Personality database profile id 46661
    "/* wbsetclaim-create:1||1 */ [[Property:P10757]]: 46661, Matched to [[:toollabs:mix-n-match/#/entry/251165875|Karl Popper (#251165875)]] in [[:toollabs:mix-n-match/#/catalog/7421|Personality Database "
  3. 4w ago · Mahirtwofivesix · 2026-08-19 view diff on Wikidata ↗
    Babelnet id 00048809n
    Accademia nazionale dei lincei id 1838-popper-sir-karl-raimund
    Wordnet 3.1 synset id 11262839-n
    Arabic ontology lexical concept id 151061126
    "/* wbeditentity-statements-multiple-properties-update:0||4 */ added/modified IDs mapped to WordNet 3.1"
  4. 7w ago · Epìdosis · 2026-07-30 view diff on Wikidata ↗
    Ethnic group Jewish people
    Religion or worldview Lutheranism
    P14688 59303
    "/* wbcreateclaim-create:1| */ [[Property:P14688]]: 59303, [[:toollabs:quickstatements/#/batch/262250|batch #262250]]"
  5. 8w ago · Fenikals · 2026-07-25 view diff on Wikidata ↗
    Languages spoken, written or signed English, German
    Ethnic group Jewish people
    "/* wbremoveclaims-remove:1| */ [[Property:P1412]]: [[Q306626]]"
  6. 9w ago · Susmuffin · 2026-07-15 view diff on Wikidata ↗
    Harper's tag karl-raimund-popper
    "/* wbsetclaim-create:1||1 */ [[Property:P13772]]: karl-raimund-popper, Matched to [[:toollabs:mix-n-match/#/entry/289945096|karl raimund popper (#289945096)]] in [[:toollabs:mix-n-match/#/catalog/7915"
  7. 10w ago · Epìdosis · 2026-07-10 view diff on Wikidata ↗
    P14611 6252
    "/* wbcreateclaim-create:1| */ [[Property:P14611]]: 6252, [[:toollabs:quickstatements/#/batch/260256|batch #260256]]"
  8. 10w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 1ZppfM
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  9. 14w ago · Jindřich Rubeš · 2026-06-11 view diff on Wikidata ↗
    Svkkl authority id p0000587-Popper-Karl-R-19021994
    "/* wbcreateclaim-create:1| */ [[Property:P9322]]: p0000587-Popper-Karl-R-19021994, [[:toollabs:quickstatements/#/batch/259497|batch #259497]]"
  10. 15w ago · MariuszRokin · 2026-06-02 view diff on Wikidata ↗
    Redba granada authority id 93332, 120943
    "/* wbcreateclaim-create:1| */ [[Property:P13019]]: 120943, [[:toollabs:quickstatements/#/batch/259265|batch #259265]]"
  11. 16w ago · Dodro · 2026-05-29 view diff on Wikidata ↗
    Library of the university of santiago de compostela authority id 981013403356607712
    "/* wbsetclaim-create:2||1 */ [[Property:P14211]]: 981013403356607712"
  12. 19w ago · Gazamp · 2026-05-09 view diff on Wikidata ↗
    Award received Pour le Mérite for Sciences and Arts order, Ring of Honour of the City of Vienna, Great Golden Medal of Honour for Services to the Republic of Austria +21
    "/* wbsetclaim-create:2||1 */ [[Property:P166]]: [[Q10354850]]"
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