# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/leopold-ruzicka
# Generated: 2026-08-13T21:53:46.815Z

schema: https://schema.org/Person
url: "https://fame.am/person/leopold-ruzicka"
name: "Leopold Ružička"
slug: "leopold-ruzicka"
description: "He synthesized male sex hormones in a lab for the first time — a feat that earned him a share of the 1939 Nobel Prize in Chemistry and cracked open the molecular architecture of steroids and scent compounds alike."
tagline: "Croatian scientist (1887-1976)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Leopold_Ruzicka_ETH-Bib_Portr_00239.jpg"
gender: "male"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1887-09-13"
deathDate: "1976-09-26"
livingStatus: "DECEASED"
scores:
  popularity:           54.95
  momentum:             0
  historical:           22.07182
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Scientists"
    slug: "scientists"
  - name: "Scientist"
    slug: "scientist"
  - name: "Chemistry"
    slug: "chemistry"
  - name: "20th Century"
    slug: "20th-century"
sources:
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    title: "ليوبولد روزيتشكا"
    type:  "WIKIPEDIA"
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    title: "Леапольд Ружычка"
    type:  "WIKIPEDIA"
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    title: "Лавослав Ружичка"
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    type:  "WIKIPEDIA"
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    title: "Lavoslav Ružička"
    type:  "WIKIPEDIA"
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    title: "Lavoslav Ružička"
    type:  "WIKIPEDIA"
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    title: "Leopold Ružička"
    type:  "WIKIPEDIA"
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    title: "Leopold Ružička"
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    title: "Leopold Ružička"
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    title: "لئوپولد روژیکچا"
    type:  "WIKIPEDIA"
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    title: "Lavoslav Ružička"
    type:  "WIKIPEDIA"
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    title: "Lavoslav Ružička"
    type:  "WIKIPEDIA"
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    title: "Leopold Ružička"
    type:  "WIKIPEDIA"
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    title: "Leopold Ružička"
    type:  "WIKIPEDIA"
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    title: "Leopold Ružička"
    type:  "WIKIPEDIA"
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    type:  "WIKIPEDIA"
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    title: "Lavoslav Ružička"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/Leopold_Ru%C5%BEi%C4%8Dka"
    title: "Leopold Ružička"
    type:  "WIKIPEDIA"
  - url: "https://hy.wikipedia.org/wiki/%D4%BC%D5%A5%D5%B8%D5%BA%D5%B8%D5%AC%D5%A4_%D5%8C%D5%B8%D6%82%D5%AA%D5%AB%D5%B9%D5%AF%D5%A1"
    title: "Լեոպոլդ Ռուժիչկա"
    type:  "WIKIPEDIA"
  - url: "https://af.wikipedia.org/wiki/Leopold_Ru%C5%BEi%C4%8Dka"
    title: "Leopold Ružička"
    type:  "WIKIPEDIA"
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    title: "ليوبولد روجيتشكا"
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Born Lavoslav Stjepan Ružička on 13 September 1887, he left Croatia for Switzerland and built a career decoding the structure of polymethylenes and higher terpenes, molecules that had resisted chemists for decades. The work culminated in the first chemical synthesis of male sex hormones, a breakthrough that brought him the Nobel in 1939. He spent most of his life in Swiss labs, collecting eight honorary doctorates, seven prizes, and two dozen honorary memberships in scientific societies along the way. He died on 26 September 1976, seventeen days after his eighty-ninth birthday.