# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/alfred-kahl
# Generated: 2026-08-14T03:06:40.433Z

schema: https://schema.org/Person
url: "https://fame.am/person/alfred-kahl"
name: "Alfred Kahl"
slug: "alfred-kahl"
description: "Alfred Detlef Fritz Kahl was a German schoolteacher who took up microscopy in mid-life and became a leading authority on ciliated protozoa. In a burst of scientific productivity that lasted just nine years, he published 1800 pages of scholarly work, in which he described 17 new ciliate families, 57 genera, and about 700 previously unknown species. During his brief career as a protozoologist, he redescribed and illustrated nearly all the species of ciliates known in his time, and fit them into a taxonomic scheme that remains influential today."
tagline: "German biologist (1877–1946)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Alfred_Kahl.jpg?width=1200"
gender: "male"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1877-02-18"
deathDate: "1946"
livingStatus: "DECEASED"
scores:
  popularity:           34.98
  momentum:             2.307692307692307
  historical:           4.8018
  currentAttention:     0
  sourceConfidence:     30
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://ar.wikipedia.org/wiki/%D8%A3%D9%84%D9%81%D8%B1%D8%AF_%D9%83%D8%A7%D9%84"
    title: "ألفرد كال"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Alfred_Kahl"
    title: "Alfred Kahl"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%A2%D9%84%D9%81%D8%B1%D8%AF_%DA%A9%D8%A7%D9%84"
    title: "آلفرد کال"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Alfred_Kahl"
    title: "Alfred Kahl"
    type:  "WIKIPEDIA"
  - url: "https://species.wikipedia.org/wiki/Alfred_Detlef_Fritz_Kahl"
    title: "Alfred Detlef Fritz Kahl"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q4722993"
    title: "Wikidata"
    type:  "WIKIDATA"

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