# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/john-venn
# Generated: 2026-08-13T04:12:19.375Z

schema: https://schema.org/Person
url: "https://fame.am/person/john-venn"
name: "John Venn"
slug: "john-venn"
description: "He gave visual form to logic itself. The overlapping circles that show up in every statistics class, every marketing deck, every attempt to reason about sets — that's his doing, and they still carry his name."
tagline: "British logician and philosopher (1834-1923)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/John_Venn_2.jpg?width=1200"
gender: "male"
category:
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  slug: "academics"
profileType:
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  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1834-08-04"
deathDate: "1923-04-04"
livingStatus: "DECEASED"
scores:
  popularity:           53.49
  momentum:             0
  historical:           22.83838666666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
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  country:  null
  category: 228
tags:
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    slug: "academics"
  - name: "Academic"
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  - name: "Mathematics"
    slug: "mathematics"
  - name: "Philosophy"
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  - name: "19th Century"
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# bio (long form, separated for readability)
bio: |
  John Venn was an English mathematician and logician who spent his career finding better ways to think about uncertainty and structure. In 1866 he published The Logic of Chance, a groundbreaking work that argued probability should rest on observed frequency rather than guesswork. Fifteen years later, in Symbolic Logic, he developed George Boole's theories further and introduced the diagrams that would outlive everything else he wrote. The overlapping circles made abstract relationships concrete, and they spread across disciplines — logic, set theory, probability, computer science. He was elected to the Royal Society, lived into his eighties, and left behind a teaching tool so intuitive it became universal.