# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/john-f-allen
# Generated: 2026-08-14T05:33:39.923Z

schema: https://schema.org/Person
url: "https://fame.am/person/john-f-allen"
name: "John F. Allen"
slug: "john-f-allen"
description: "John Frank Allen, FRS FRSE was a Canadian physicist. At the same time as Pyotr Leonidovich Kapitsa in Moscow, Don Misener and Allen independently discovered the superfluid phase of matter in 1937 using liquid helium in the Royal Society Mond Laboratory in Cambridge, England."
tagline: "Canadian physicist (1908–2001)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/John_F._Allen.gif?width=1200"
gender: "male"
country:
  name: "Canada"
  isoCode: "CA"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1908-05-06"
deathDate: "2001-04-22"
livingStatus: "DECEASED"
scores:
  popularity:           38.98
  momentum:             0.2439024390243902
  historical:           7.006048
  currentAttention:     0
  sourceConfidence:     45
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://musicbrainz.org/artist/1bf87a9a-7c2e-4b3c-87c4-980b35673afa"
    title: "MusicBrainz"
    type:  "DATABASE"
  - url: "https://arz.wikipedia.org/wiki/%D8%AC%D9%88%D9%86_%D8%A7%D9%81._%D8%A7%D9%84%D9%8A%D9%86"
    title: "جون اف. الين"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%D8%A7%D9%81_%D8%A2%D9%84%D9%86"
    title: "جان اف آلن"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/John_F._Allen"
    title: "John F. Allen"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/John_F._Allen_(physicist)"
    title: "John F. Allen (physicist)"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%D8%A7%D9%81_%D8%A2%D9%84%D9%86"
    title: "جان اف آلن"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%90%D0%BB%D0%BB%D0%B5%D0%BD%2C_%D0%94%D0%B6%D0%BE%D0%BD_%D0%A4%D1%80%D1%8D%D0%BD%D0%BA"
    title: "Аллен, Джон Фрэнк"
    type:  "WIKIPEDIA"
  - url: "https://uk.wikipedia.org/wiki/%D0%94%D0%B6%D0%BE%D0%BD_%D0%A4%D1%80%D0%B5%D0%BD%D0%BA_%D0%90%D0%BB%D0%BB%D0%B5%D0%BD"
    title: "Джон Френк Аллен"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q4062575"
    title: "Wikidata"
    type:  "WIKIDATA"

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