Rolf Appel

German chemist (1921-2012)
Person human Q7360688
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Rolf Appel

Summary

Rolf Appel is a human[1]. His place of birth was Hamburg[2]. He was born on February 25, 1921[3]. He died on January 30, 2012[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 (12 views/month, #7,298 of 1,000,298).[7]

Key Facts

  • Born in Hamburg[2], Rolf Appel…
  • Rolf Appel's place of birth was Harburg[8].
  • Rolf Appel was born on February 25, 1921[3].
  • Rolf Appel died on January 30, 2012[4].
  • Rolf Appel is buried at Poppelsdorf Cemetery[9].
  • Rolf Appel held citizenship in Germany[10].
  • Rolf Appel worked as a chemist[5].
  • Rolf Appel worked as a university teacher[6].
  • Rolf Appel was employed by University of Bonn[11].
  • Rolf Appel received the Liebig Medal[12].
  • Rolf Appel was a member of North Rhine-Westphalia Academy for Sciences and Arts[13].
  • Rolf Appel is recorded as male[14].
  • Rolf Appel's instance of is recorded as human[15].
  • Rolf Appel's family name is recorded as Appel[16].
  • Rolf Appel's given name is recorded as Rolf[17].
  • Rolf Appel's work location is recorded as Bonn[18].
  • Rolf Appel's languages spoken, written or signed is recorded as German[19].
  • Rolf Appel's name in native language is recorded as {'lang': 'de', 'text': 'Rolf Appel'}[20].

Body

Origins and Family

Recorded place of birth include Hamburg[2], a federated state of Germany[21], in Holy Roman Empire[22] and Harburg[8], a quarter of Hamburg[23], in Germany[24]. Rolf Appel was born on February 25, 1921[3].

Career and Affiliations

Recorded occupations include chemist[5] and university teacher[6]. Rolf Appel was employed by University of Bonn[11].

Recognition

Rolf Appel received the Liebig Medal[12].

Death and Burial

Rolf Appel died on January 30, 2012[4]. Burial took place at Poppelsdorf Cemetery[9].

Works and Contributions

Things named for Rolf Appel include Appel reaction[25], an eponymous chemical reaction[26].

Why It Matters

Rolf Appel ranks in the top 0.73% of human entities by monthly Wikipedia readership (12 views/month, #7,298 of 1,000,298).[7] He has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[27] He is known by 4 alternative names across languages and contexts.[28]

Entities named for him include Appel reaction[25], an eponymous chemical reaction[26].

FAQs

Where was Rolf Appel born?

Rolf Appel's place of birth was Hamburg[2].

What did Rolf Appel do for work?

Rolf Appel worked as chemist[5] and university teacher[6].

What awards did Rolf Appel receive?

Honors received include Liebig Medal[12].

References

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

Direct Wikidata claims

  1. [2] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  2. [8] ↑ . wikidata.org.
  3. [14] ↑ . wikidata.org.
  4. [10] ↑ . wikidata.org.
  5. [15] ↑ . wikidata.org.
  6. [5] ↑ . wikidata.org.
  7. [6] ↑ . wikidata.org.
  8. [11] ↑ . wikidata.org.
  9. [9] ↑ . wikidata.org.
  10. [12] ↑ . en.gdch.de. en.gdch.de. Provenance: wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  13. [4] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [25] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [21] ↑ . Wikidata. wikidata.org. → on this site
  2. [22] ↑ . Wikidata. wikidata.org. → on this site
  3. [23] ↑ . Wikidata. wikidata.org. → on this site
  4. [24] ↑ . Wikidata. wikidata.org. → on this site
  5. [26] ↑ . 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. [27] ↑ . Wikidata sitelinks. wikidata.org.
  3. [28] ↑ . 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). Rolf Appel. Retrieved October 6, 2026, from https://4ort.xyz/entity/rolf-appel
MLA “Rolf Appel.” 4ort.xyz Knowledge Graph, 4ort.xyz, 6 Oct. 2026, https://4ort.xyz/entity/rolf-appel.
BibTeX @misc{4ortxyz_rolf-appel_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Rolf Appel}}, year = {2026}, url = {https://4ort.xyz/entity/rolf-appel}, note = {Accessed: 2026-10-06}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Rolf Appel — https://4ort.xyz/entity/rolf-appel (retrieved 2026-10-06)

Canonical URL: https://4ort.xyz/entity/rolf-appel · 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. 17h ago · Printstream · 2026-10-06 view diff on Wikidata ↗
    Member of → —
    Work location → Bonn
    Place of birth → Hamburg, Harburg
    Family name → Appel
    + 17 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/57880|batch #57880]]: Import more precise places of birth, date from dewiki"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.