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)
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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 (4,920 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 worked as a philosopher[4].
  • Karl Popper's professions included philosopher of science[5].
  • Karl Popper worked as a writer[6].
  • Karl Popper's professions included university teacher[7].
  • Karl Popper's professions included sociologist[8].
  • Karl Popper's professions included mathematician[18].
  • Karl Popper's field of work was philosophy[19].
  • Karl Popper's field of work was epistemology[20].
  • Karl Popper's field of work was rationality[21].
  • Karl Popper's field of work was philosophy of science[22].
  • Karl Popper's field of work was logic[23].
  • Karl Popper's field of work was political philosophy[24].
  • Among Karl Popper's employers was University of Canterbury[25].
  • Karl Popper was employed by London School of Economics and Political Science[26].
  • Among Karl Popper's employers was King's College London[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].

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

Recognition

Awards received include Pour le Mérite for Sciences and Arts order[63], Ring of Honour of the City of Vienna[64], Great Golden Medal of Honour for Services to the Republic of Austria[65], Great Cross with Star and Sash of the Order of Merit of the Federal Republic of Germany[66], Otto Hahn Peace Medal[67], and Catalonia International Prize[68].

Personal Life

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

Death and Burial

Karl Popper died in Kenley[3]. He is buried at mortuary Lainzer Friedhof[10].

Why It Matters

Karl Popper ranks in the top 0.66% of human entities by monthly Wikipedia readership (4,920 views/month, #6,571 of 1,000,298).[9] He has Wikipedia articles in 28 language editions, a strong signal of global cultural recognition.[69] He is known by 76 alternative names across languages and contexts.[70]

He has been cited as an influence by Stephen Hawking[71], a theoretical physicist[72], 1942–2018[73], of United Kingdom[74], awarded the Albert Einstein Medal[75], specialised in general relativity[76]; Mario Vargas Llosa[77], a novelist[78], 1936–2025[79], of Peru[80], awarded the Nobel Prize in Literature[81], specialised in literature[82]; Yeshayahu Leibowitz[83], a biochemist[84], 1903–1994[85], of Israel[86], specialised in philosophy[87]; Peter Cathcart Wason[88], a psychologist[89], 1924–2003[90], of United Kingdom[91]; and Eric Scerri[92], a chemist[93], b. 1953[94], of United States[95].

He is credited with the discovery of Popper's experiment[96], a thought experiment[97]. Works attributed to him include paradox of tolerance[98]; The Open Society and Its Enemies[99], a written work[100]; The Logic of Scientific Discovery[101], a literary work[102]; The Poverty of Historicism[103]; and Conjectures and Refutations[104].

His notable doctoral advisees include A. I. Sabra[105] and Charles Leonard Hamblin[106].

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[107].

What awards did Karl Popper receive?

Honors received include Pour le Mérite for Sciences and Arts order[63], Ring of Honour of the City of Vienna[64], Great Golden Medal of Honour for Services to the Republic of Austria[65], and Great Cross with Star and Sash of the Order of Merit of the Federal Republic of Germany[66].

Who did Karl Popper influence?

Karl Popper has been cited as an influence by Stephen Hawking[71], Mario Vargas Llosa[77], Yeshayahu Leibowitz[83], and Peter Cathcart Wason[88].

What did Karl Popper discover?

Karl Popper is credited as discoverer of Popper's experiment[96].

References

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

Direct Wikidata claims

  1. [2] . Integrated Authority File. Retrieved . britannica.com. Provenance: wikidata.org.
  2. [3] . wikidata.org.
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Inverse relationships (entities pointing at this one)

  1. [71] . wikidata.org. → on this site
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Inline context (facts about related entities)

  1. [29] . Wikidata. wikidata.org. → on this site
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Class ancestry

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

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [69] . Wikidata sitelinks. wikidata.org.
  3. [70] . Wikidata aliases. wikidata.org.

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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
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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}}
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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. 2d 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"
  2. 21d 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 +19
    "/* wbsetclaim-create:2||1 */ [[Property:P166]]: [[Q10354850]]"
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