# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/duncan-macdougall
# Generated: 2026-08-13T23:43:22.734Z

schema: https://schema.org/Person
url: "https://fame.am/person/duncan-macdougall"
name: "Duncan MacDougall"
slug: "duncan-macdougall"
description: "The 21 grams experiment refers to a study published in 1907 by Duncan MacDougall, a physician from Haverhill, Massachusetts. MacDougall hypothesized that souls have physical weight, and attempted to measure the mass lost by a human when the soul departed the body. MacDougall attempted to measure the mass change of six patients at the moment of death. One of the six subjects lost three-quarters of an ounce."
tagline: "American physician (1866-1920)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Duncan_MacDougall_physician.png?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Doctors"
  slug: "doctors"
profileType:
  name: "Doctor"
  slug: "doctor"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1866-04-11"
deathDate: "1920-10-15"
livingStatus: "DECEASED"
scores:
  popularity:           48.98
  momentum:             0.03733084461035931
  historical:           12.94410266666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://vi.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%AF%D9%88%D9%86%D9%83%D8%A7%D9%86_%D9%85%D8%A7%D9%83%D8%AF%D9%88%D8%BA%D8%A7%D9%84"
    title: "دونكان ماكدوغال"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%AF%D9%88%D9%86%D9%83%D8%A7%D9%86_%D9%85%D8%A7%D9%83%D8%AF%D9%88%D8%AC%D8%A7%D9%84"
    title: "دونكان ماكدوجال"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Duncan_MacDougall_(doctor)"
    title: "Duncan MacDougall (doctor)"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Duncan_MacDougall_(m%C3%A9decin)"
    title: "Duncan MacDougall (médecin)"
    type:  "WIKIPEDIA"
  - url: "https://hy.wikipedia.org/wiki/%D4%B4%D5%B8%D6%82%D5%B6%D5%AF%D5%A1%D5%B6_%D5%84%D5%A1%D5%AF%D5%A4%D5%B8%D6%82%D5%A3%D5%A1%D5%AC"
    title: "Դունկան Մակդուգալ"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%83%80%E3%83%B3%E3%82%AB%E3%83%B3%E3%83%BB%E3%83%9E%E3%82%AF%E3%83%89%E3%82%A5%E3%83%BC%E3%82%AC%E3%83%AB"
    title: "ダンカン・マクドゥーガル"
    type:  "WIKIPEDIA"
  - url: "https://la.wikipedia.org/wiki/Duncan_MacDougall_(medicus)"
    title: "Duncan MacDougall (medicus)"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Duncan_MacDougall"
    title: "Duncan MacDougall"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%9C%D0%B0%D0%BA%D0%B4%D1%83%D0%B3%D0%B0%D0%BB%D0%BB%2C_%D0%94%D1%83%D0%BD%D0%BA%D0%B0%D0%BD"
    title: "Макдугалл, Дункан"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q549622"
    title: "Wikidata"
    type:  "WIKIDATA"

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