Marc Delafontaine

Swiss chemist (1838-1911)
Person human Q124122
Marc Delafontaine
Chicago Tribune (30 de maig del 1897) · Public Domain · Wikimedia
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Marc Delafontaine

Summary

Marc Delafontaine is a human[1]. His place of birth was Céligny[2]. He was born on +1838-03-31T00:00:00Z[3]. He died on +1911-01-01T00:00:00Z[4]. He worked as a chemist[5] and university teacher[6]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (30 views/month, #7,293 of 1,000,298).[7]

Key Facts

  • Born in Céligny[2], Marc Delafontaine…
  • Marc Delafontaine was born on +1838-03-31T00:00:00Z[3].
  • Marc Delafontaine died on +1911-01-01T00:00:00Z[4].
  • Marc Delafontaine held citizenship in Switzerland[8].
  • Marc Delafontaine's professions included chemist[5].
  • Marc Delafontaine's professions included university teacher[6].
  • Marc Delafontaine's field of work was rare earth element[9].
  • Among Marc Delafontaine's employers was University of Chicago[10].
  • Among Marc Delafontaine's employers was University of Geneva[11].
  • Marc Delafontaine's education included a stint at University of Geneva[12].
  • Marc Delafontaine is recorded as male[13].
  • Marc Delafontaine's instance of is recorded as human[14].
  • Marc Delafontaine's family name is recorded as Delafontaine[15].
  • Marc Delafontaine's given name is recorded as Marc[16].

Body

Origins and Family

Marc Delafontaine was born in Céligny[2]. He was born on +1838-03-31T00:00:00Z[3].

Education

Marc Delafontaine's education included a stint at University of Geneva[12].

Career and Affiliations

Recorded occupations include chemist[5] and university teacher[6]. Marc Delafontaine's field of work was rare earth element[9]. Employers include University of Chicago[10], a private university[17], in United States[18], founded in 1890[19], headquartered in Chicago[20] and University of Geneva[11], a public research university[21], in Switzerland[22], founded in 1559[23], headquartered in Geneva[24].

Death and Burial

Marc Delafontaine died on +1911-01-01T00:00:00Z[4].

Why It Matters

Marc Delafontaine ranks in the top 0.73% of human entities by monthly Wikipedia readership (30 views/month, #7,293 of 1,000,298).[7] He has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[25] He is known by 4 alternative names across languages and contexts.[26]

He is credited with the discovery of holmium[27], a chemical element[28].

FAQs

Where was Marc Delafontaine born?

Born in Céligny[2], Marc Delafontaine…

What did Marc Delafontaine do for work?

Marc Delafontaine worked as chemist[5] and university teacher[6].

Where did Marc Delafontaine go to school?

Marc Delafontaine was educated at University of Geneva[12].

What did Marc Delafontaine discover?

Marc Delafontaine is credited as discoverer of holmium[27].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [13] . wikidata.org.
  3. [8] . wikidata.org.
  4. [14] . wikidata.org.
  5. [12] . wikidata.org.
  6. [9] . wikidata.org.
  7. [5] . wikidata.org.
  8. [6] . wikidata.org.
  9. [10] . wikidata.org.
  10. [11] . Retrieved . wikidata.org.
  11. [3] . wikidata.org.
  12. [4] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [27] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [17] . Wikidata. wikidata.org. → on this site
  2. [18] . Wikidata. wikidata.org. → on this site
  3. [19] . Wikidata. wikidata.org. → on this site
  4. [20] . Wikidata. wikidata.org. → on this site
  5. [21] . Wikidata. wikidata.org. → on this site
  6. [22] . Wikidata. wikidata.org. → on this site
  7. [23] . Wikidata. wikidata.org. → on this site
  8. [24] . Wikidata. wikidata.org. → on this site
  9. [28] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [7] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [25] . Wikidata sitelinks. wikidata.org.
  3. [26] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Marc Delafontaine. Retrieved April 10, 2026, from https://4ort.xyz/entity/marc-delafontaine
MLA “Marc Delafontaine.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/marc-delafontaine.
BibTeX @misc{4ortxyz_marc-delafontaine_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Marc Delafontaine}}, year = {2026}, url = {https://4ort.xyz/entity/marc-delafontaine}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Marc Delafontaine — https://4ort.xyz/entity/marc-delafontaine (retrieved 2026-04-10)

Canonical URL: https://4ort.xyz/entity/marc-delafontaine · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 27d ago · Mykhal · 2026-05-08 view diff on Wikidata ↗
    Date of death +1911-01-01T00:00:00Z
    Date of birth +1838-03-31T00:00:00Z
    "/* wbsetclaim-create:2||1 */ [[Property:P569]]: 1837"
  2. 4w ago · OndraMix · 2026-05-05 view diff on Wikidata ↗
    Occupation
    Employer
    Country of citizenship Switzerland
    Sex or gender male
    + 14 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P20]]: [[Q1297]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.