# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/william-frederick-friedman
# Generated: 2026-08-13T11:20:14.763Z

schema: https://schema.org/Person
url: "https://fame.am/person/william-frederick-friedman"
name: "William Frederick Friedman"
slug: "william-frederick-friedman"
description: "William Frederick Friedman was a US Army cryptographer who ran the research division of the Army's Signal Intelligence Service (SIS) in the 1930s, and parts of its follow-on services into the 1950s. In 1940, subordinates of his led by Frank Rowlett broke Japan's PURPLE cipher, thus disclosing Japanese diplomatic secrets before America's entrance into World War II."
tagline: "American cryptologist (1891–1969)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/William-Friedman.jpg?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1891-09-24"
deathDate: "1969-11-02"
livingStatus: "DECEASED"
scores:
  popularity:           49.41
  momentum:             1.506550218340611
  historical:           11.61645733333333
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://zh.wikipedia.org/wiki/%E5%A8%81%E5%BB%89%C2%B7%E5%BC%97%E9%87%8C%E5%BE%B7%E6%9B%BC"
    title: "威廉·弗里德曼"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%88%D9%84%D9%8A%D8%A7%D9%85_%D9%81%D8%B1%D9%8A%D8%AF%D9%85%D8%A7%D9%86"
    title: "وليام فريدمان"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%A3%D0%B8%D0%BB%D1%8F%D0%BC_%D0%A4%D1%80%D0%B8%D0%B4%D0%BC%D0%B0%D0%BD"
    title: "Уилям Фридман"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/William_Friedman"
    title: "William Friedman"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/William_Friedman"
    title: "William Friedman"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/William_F._Friedman"
    title: "William F. Friedman"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/William_F._Friedman"
    title: "William F. Friedman"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/William_F._Friedman"
    title: "William F. Friedman"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/William_Friedman"
    title: "William Friedman"
    type:  "WIKIPEDIA"
  - url: "https://ko.wikipedia.org/wiki/%EC%9C%8C%EB%A6%AC%EC%97%84_F._%ED%94%84%EB%A6%AC%EB%93%9C%EB%A8%BC"
    title: "윌리엄 F. 프리드먼"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/William_F._Friedman"
    title: "William F. Friedman"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%A4%D1%80%D0%B8%D0%B4%D0%BC%D0%B0%D0%BD%2C_%D0%A3%D0%B8%D0%BB%D1%8C%D1%8F%D0%BC_%D0%A4%D1%80%D0%B5%D0%B4%D0%B5%D1%80%D0%B8%D0%BA"
    title: "Фридман, Уильям Фредерик"
    type:  "WIKIPEDIA"
  - url: "https://uk.wikipedia.org/wiki/%D0%92%D1%96%D0%BB%D1%8C%D1%8F%D0%BC_%D0%A4%D1%80%D0%B5%D0%B4%D0%B5%D1%80%D1%96%D0%BA_%D0%A4%D1%80%D1%96%D0%B4%D0%BC%D0%B0%D0%BD"
    title: "Вільям Фредерік Фрідман"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q969082"
    title: "Wikidata"
    type:  "WIKIDATA"

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