# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/john-t-graves
# Generated: 2026-09-02T07:45:24.742Z

schema: https://schema.org/Person
url: "https://fame.am/person/john-t-graves"
name: "John T. Graves"
slug: "john-t-graves"
description: "John Thomas Graves was an Irish jurist and mathematician. He was a friend of William Rowan Hamilton, and is credited both with inspiring Hamilton to discover the quaternions in October 1843 and then discovering their generalization the octonions himself later that same year. He was the brother of both the mathematician and bishop Charles Graves and the writer and clergyman Robert Perceval Graves."
tagline: "Irish mathematician (1806–1870)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/John_T_Graves.jpg?width=1200"
gender: "male"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1806-12-04"
deathDate: "1870-03-29"
livingStatus: "DECEASED"
scores:
  popularity:           42.29
  momentum:             10.63492063492063
  historical:           7.207236
  currentAttention:     0
  sourceConfidence:     45
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://sl.wikipedia.org/wiki/John_Thomas_Graves"
    title: "John Thomas Graves"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/John_Thomas_Graves"
    title: "John Thomas Graves"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/John_Thomas_Graves"
    title: "John Thomas Graves"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/John_T._Graves"
    title: "John T. Graves"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/John_Thomas_Graves"
    title: "John Thomas Graves"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/John_T._Graves"
    title: "John T. Graves"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/John_T._Graves"
    title: "John T. Graves"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/John_T._Graves"
    title: "John T. Graves"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q940427"
    title: "Wikidata"
    type:  "WIKIDATA"

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