# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/john-langdon-down
# Generated: 2026-09-07T20:26:33.874Z

schema: https://schema.org/Person
url: "https://fame.am/person/john-langdon-down"
name: "John Langdon Down"
slug: "john-langdon-down"
description: "John Langdon Haydon Down was a British physician best known for his description of the genetic condition Down's syndrome, which he originally classified in 1862. He is also noted for his work in social medicine and as a pioneer in the care of mentally disabled patients."
tagline: "British physician and first person to describe Down syndrome (1828-1896)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Portrait_of_John_Langdon_Down_(c_1870)_by_Sydney_Hodges.jpg?width=1200"
gender: "male"
country:
  name: "United Kingdom"
  isoCode: "GB"
category:
  name: "Doctors"
  slug: "doctors"
profileType:
  name: "Doctor"
  slug: "doctor"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1828-11-18"
deathDate: "1896-10-07"
livingStatus: "DECEASED"
scores:
  popularity:           55.37
  momentum:             0.3281292796494111
  historical:           21.61207733333334
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: 194
sources:
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    title: "John Langdon Haydon Down"
    type:  "WIKIPEDIA"
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    title: "جون لانغدون داون"
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    title: "جون لانجدون داون"
    type:  "WIKIPEDIA"
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    title: "Джон Лангдън Даун"
    type:  "WIKIPEDIA"
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    title: "John Langdon Haydon Down"
    type:  "WIKIPEDIA"
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    title: "John Langdon Down"
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    title: "John Langdon Down"
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    title: "John Langdon Down"
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    title: "John Langdon Down"
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    title: "John Langdon Down"
    type:  "WIKIPEDIA"
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    title: "John Langdon Down"
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    title: "جان لانگدان داون"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/John_Langdon_Down"
    title: "John Langdon Down"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/John_Langdon-Down"
    title: "John Langdon-Down"
    type:  "WIKIPEDIA"
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    title: "John Langdon Down"
    type:  "WIKIPEDIA"
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    title: "ג'ון לנגדון דאון"
    type:  "WIKIPEDIA"
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    title: "John Langdon Down"
    type:  "WIKIPEDIA"
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    title: "John Langdon Down"
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    title: "John Langdon Down"
    type:  "WIKIPEDIA"
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    title: "Džons Dauns"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/John_Langdon_Down"
    title: "John Langdon Down"
    type:  "WIKIPEDIA"
  - url: "https://no.wikipedia.org/wiki/John_Langdon_Down"
    title: "John Langdon Down"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/John_Langdon_Down"
    title: "John Langdon Down"
    type:  "WIKIPEDIA"
  - url: "https://ppl.wikipedia.org/wiki/John_Langdon_Down"
    title: "John Langdon Down"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q315940"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump