Down syndrome

chromosomal condition
Thing disability Q47715
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Down syndrome

Summary

Down syndrome is a disability[1]. It draws 11,526 Wikipedia views per month (disability category, ranking #3 of 7).[2]

Key Facts

  • Down syndrome's instance of is recorded as disability[3].
  • Down syndrome's instance of is recorded as class of disease[4].
  • John Langdon Down is named after Down syndrome[5].
  • Down syndrome is a type of chromosomal disease[6].
  • Down syndrome is a type of trisomy[7].
  • Down syndrome is a type of total autosomal trisomy[8].
  • Down syndrome is a type of disease[9].
  • Down syndrome's Commons category is recorded as Down syndrome[10].
  • Down syndrome's said to be the same as is recorded as Mongolian idiocy[11].
  • Down syndrome's ICPC 2 ID is recorded as A90[12].
  • Down syndrome's has cause is recorded as trisomy[13].
  • Down syndrome's has cause is recorded as trisomy[14].
  • Down syndrome's topic's main category is recorded as Category:Down syndrome[15].
  • Down syndrome's chromosome is recorded as human chromosome 21[16].
  • Down syndrome's prevalence is recorded as {'amount': '+0.001'}[17].
  • Down syndrome's ICD-9-CM is recorded as 758.0[18].
  • Down syndrome's NCI Thesaurus ID is recorded as C2993[19].
  • Down syndrome's health specialty is recorded as medical genetics[20].
  • Down syndrome's health specialty is recorded as neurology[21].
  • Down syndrome's genetic association is recorded as human chromosome 21[22].
  • Down syndrome's exact match is recorded as http://purl.obolibrary.org/obo/DOID_14250[23].
  • Down syndrome's exact match is recorded as http://identifiers.org/doid/DOID:14250[24].
  • Down syndrome's on focus list of Wikimedia project is recorded as WikiProject Medicine[25].
  • Down syndrome's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[26].
  • Down syndrome's chromosome count is recorded as {'amount': '+47'}[27].

Body

Definition and Type

Recorded instance of include disability[3] and class of disease[4]. Recorded subclass of include chromosomal disease[6], trisomy[7], total autosomal trisomy[8], and disease[9].

Origins

John Langdon Down is named after Down syndrome[5].

Influence

Things named for Down syndrome include World Down Syndrome Day[28], a world day[29], founded in 2006[30].

Why It Matters

Down syndrome draws 11,526 Wikipedia views per month (disability category, ranking #3 of 7).[2] It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[31] It is known by 121 alternative names across languages and contexts.[32]

Entities named for it include World Down Syndrome Day[28], a world day[29], founded in 2006[30].

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Disease Ontology. Retrieved . wikidata.org.
  5. [7] . Study of chromosomes of nine children with Down syndrome. wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . Klinická neurologie část speciální. wikidata.org.
  16. [18] . Disease Ontology. Retrieved . wikidata.org.
  17. [19] . Disease Ontology. Retrieved . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . Klinická neurologie část speciální. wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . Disease Ontology. Retrieved . wikidata.org.
  22. [24] . Identifiers.org. ebi.ac.uk. Provenance: wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [28] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [29] . Wikidata. wikidata.org. → on this site
  2. [30] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [31] . Wikidata sitelinks. wikidata.org.
  3. [32] . 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). Down syndrome. Retrieved May 3, 2026, from https://4ort.xyz/entity/down-syndrome
MLA “Down syndrome.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/down-syndrome.
BibTeX @misc{4ortxyz_down-syndrome_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Down syndrome}}, year = {2026}, url = {https://4ort.xyz/entity/down-syndrome}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Down syndrome — https://4ort.xyz/entity/down-syndrome (retrieved 2026-05-03)

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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. 3d ago · Twofivesixbot bot · 2026-05-19 view diff on Wikidata ↗
    Symptoms and signs ['Q223254', 'Q16606552', 'Q190805', 'Q183560']
    "/* wbsetclaim-update-qualifiers:1||1|8 */ [[Property:P2347]]: 4177, mv to monolingual text names on YSO statements"
  2. 8d ago · Sabrina2026 · 2026-05-15 view diff on Wikidata ↗
    Chromosome human chromosome 21
    Subclass of
    Has cause trisomy, trisomy
    Said to be the same as Mongolian idiocy
    + 13 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P279]]: [[Q480700]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.