# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/ptolemy
# Generated: 2026-09-01T12:43:55.569Z

schema: https://schema.org/Person
url: "https://fame.am/person/ptolemy"
name: "Ptolemy"
slug: "ptolemy"
description: "His model placed Earth at the center of the cosmos — and for 1,400 years, it worked well enough that no one in three civilizations could improve on it."
tagline: "2nd-century Roman mathematician, astronomer, geographer"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/PSM_V78_D326_Ptolemy.png"
gender: "male"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "100"
deathDate: "170"
livingStatus: "DECEASED"
scores:
  popularity:           76.13
  momentum:             0
  historical:           26.204784
  currentAttention:     7.416666666666668
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: 76
tags:
  - name: "Scientists"
    slug: "scientists"
  - name: "Academic"
    slug: "academic"
  - name: "Mathematics"
    slug: "mathematics"
  - name: "Astronomy"
    slug: "astronomy"
  - name: "Philosophy"
    slug: "philosophy"
  - name: "Literature"
    slug: "literature"
  - name: "Ancient History"
    slug: "ancient-history"
sources:
  - url: "https://en.wikipedia.org/wiki/Ptolemy"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q34943"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://pantheon.world/profile/person/Ptolemy"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://am.wikipedia.org/wiki/%E1%89%B6%E1%88%88%E1%88%9A"
    title: "ቶለሚ"
    type:  "WIKIPEDIA"
  - url: "https://an.wikipedia.org/wiki/Claudio_Ptolomeu"
    title: "Claudio Ptolomeu"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%A8%D8%B7%D9%84%D9%8A%D9%85%D9%88%D8%B3"
    title: "بطليموس"
    type:  "WIKIPEDIA"
  - url: "https://ary.wikipedia.org/wiki/%D9%83%D9%84%D8%A7%D9%88%D8%AF%D9%8A%D9%88%D8%B3_%D9%BE%D8%B7%D9%88%D9%84%D9%8A%D9%85%D8%A7%D9%8A%D9%88%D8%B3"
    title: "كلاوديوس پطوليمايوس"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%83%D9%84%D8%A7%D9%88%D8%AF%D9%8A%D9%88%D8%B3_%D8%A8%D8%B7%D9%84%D9%8A%D9%85%D9%88%D8%B3"
    title: "كلاوديوس بطليموس"
    type:  "WIKIPEDIA"
  - url: "https://ast.wikipedia.org/wiki/Claudio_Tolomeo"
    title: "Claudio Tolomeo"
    type:  "WIKIPEDIA"
  - url: "https://az.wikipedia.org/wiki/Ptolemey"
    title: "Ptolemey"
    type:  "WIKIPEDIA"
  - url: "https://ba.wikipedia.org/wiki/%D0%9A%D0%BB%D0%B0%D0%B2%D0%B4%D0%B8%D0%B9_%D0%9F%D1%82%D0%BE%D0%BB%D0%B5%D0%BC%D0%B5%D0%B9"
    title: "Клавдий Птолемей"
    type:  "WIKIPEDIA"
  - url: "https://bcl.wikipedia.org/wiki/Ptolemy"
    title: "Ptolemy"
    type:  "WIKIPEDIA"
  - url: "https://be_x_old.wikipedia.org/wiki/%D0%9A%D0%BB%D1%8F%D1%9E%D0%B4%D1%8B%D1%8E%D1%81_%D0%9F%D1%82%D0%B0%D0%BB%D0%B5%D0%BC%D1%8D%D0%B9"
    title: "Кляўдыюс Пталемэй"
    type:  "WIKIPEDIA"
  - url: "https://be.wikipedia.org/wiki/%D0%9A%D0%BB%D0%B0%D1%9E%D0%B4%D0%B7%D1%96%D0%B9_%D0%9F%D1%82%D0%B0%D0%BB%D0%B5%D0%BC%D0%B5%D0%B9"
    title: "Клаўдзій Пталемей"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%9A%D0%BB%D0%B0%D0%B2%D0%B4%D0%B8%D0%B9_%D0%9F%D1%82%D0%BE%D0%BB%D0%B5%D0%BC%D0%B5%D0%B9"
    title: "Клавдий Птолемей"
    type:  "WIKIPEDIA"
  - url: "https://bn.wikipedia.org/wiki/%E0%A6%9F%E0%A6%B2%E0%A7%87%E0%A6%AE%E0%A6%BF"
    title: "টলেমি"
    type:  "WIKIPEDIA"
  - url: "https://br.wikipedia.org/wiki/Klaudios_Ptolemaios"
    title: "Klaudios Ptolemaios"
    type:  "WIKIPEDIA"
  - url: "https://bs.wikipedia.org/wiki/Ptolemej"
    title: "Ptolemej"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Claudi_Ptolemeu"
    title: "Claudi Ptolemeu"
    type:  "WIKIPEDIA"
  - url: "https://cbk_zam.wikipedia.org/wiki/Claudio_Ptolomeo"
    title: "Claudio Ptolomeo"
    type:  "WIKIPEDIA"
  - url: "https://ckb.wikipedia.org/wiki/%D8%A8%DB%95%D8%AA%DA%B5%DB%8C%D9%85%DB%86%D8%B3"
    title: "بەتڵیمۆس"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Klaudios_Ptolemaios"
    title: "Klaudios Ptolemaios"
    type:  "WIKIPEDIA"
  - url: "https://cy.wikipedia.org/wiki/Ptolemi"
    title: "Ptolemi"
    type:  "WIKIPEDIA"
  - url: "https://da.wikipedia.org/wiki/Ptolem%C3%A6us"
    title: "Ptolemæus"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Claudius_Ptolem%C3%A4us"
    title: "Claudius Ptolemäus"
    type:  "WIKIPEDIA"
  - url: "https://diq.wikipedia.org/wiki/Batlamyus"
    title: "Batlamyus"
    type:  "WIKIPEDIA"
  - url: "https://az.wikiquote.org/wiki/Ptolemey"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://en.wikiquote.org/wiki/Ptolemy"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://es.wikiquote.org/wiki/Claudio_Ptolomeo"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://fr.wikiquote.org/wiki/Claude_Ptol%C3%A9m%C3%A9e"
    title: "Wikiquote"
    type:  "WEBSITE"

# bio (long form, separated for readability)
bio: |
  Claudius Ptolemy was a Greco-Roman mathematician working in the second century AD who wrote roughly a dozen scientific treatises. Three survived to reshape medieval knowledge: the Almagest, his astronomical work that presented the only mathematically rigorous geocentric model of the solar system; the Geography, a systematic treatment of maps and the known world; and the Tetrabiblos, where he tried to reconcile horoscopic astrology with Aristotelian physics. The Catholic Church later promoted his astronomy, and Byzantine and Islamic scholars copied his works through late antiquity and the Middle Ages. But the math was dense — most readers relied on abridged summaries rather than engage the original calculations. His system held until it didn't.