Down syndrome

chromosomal condition
Thing disability Q47715
Press Enter · cited answer in seconds

Down syndrome

Summary

Down syndrome is a disability[1]. It draws 11,210 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 otitis[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 symptoms and signs is recorded as otitis media[13].
  • Down syndrome's symptoms and signs is recorded as obstructive sleep apnea[14].
  • Down syndrome's symptoms and signs is recorded as heart disease[15].
  • Down syndrome's symptoms and signs is recorded as intellectual disability[16].
  • Down syndrome's has cause is recorded as trisomy[17].
  • Down syndrome's has cause is recorded as trisomy[18].
  • Down syndrome's topic's main category is recorded as Category:Down syndrome[19].
  • Down syndrome's chromosome is recorded as human chromosome 21[20].
  • Down syndrome's prevalence is recorded as {'amount': '+0.001'}[21].
  • Down syndrome's ICD-9-CM is recorded as 758.0[22].
  • Down syndrome's NCI Thesaurus ID is recorded as C2993[23].
  • Down syndrome's health specialty is recorded as medical genetics[24].
  • Down syndrome's health specialty is recorded as neurology[25].
  • Down syndrome's genetic association is recorded as human chromosome 21[26].
  • Down syndrome's exact match is recorded as http://purl.obolibrary.org/obo/DOID_14250[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 otitis[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 11,210 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 149 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] ↑ . wikidata.org.
  5. [7] ↑ . 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] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . 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 October 4, 2026, from https://4ort.xyz/entity/down-syndrome
MLA “Down syndrome.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Oct. 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: 2026-10-04}}
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 2026-10-04)

Canonical URL: https://4ort.xyz/entity/down-syndrome · 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. 28d ago · Rose Abrams · 2026-09-08 view diff on Wikidata ↗
    Dagens nyheter topic id → downs-syndrom
    "/* wbsetclaim-create:1||1 */ [[Property:P3509]]: downs-syndrom, Matched to [[:toollabs:mix-n-match/#/entry/62008342|Downs syndrom (#62008342)]] in [[:toollabs:mix-n-match/#/catalog/488|DN topic]] #mix"
  2. 10w ago · Kirilloparma · 2026-07-25 view diff on Wikidata ↗
    P14470 → Concepts/Down_Syndrome
    "/* wbsetclaim-create:1||1 */ [[Property:P14470]]: Concepts/Down_Syndrome, Adding missing [[P:P14470|P14470]] and [[P:P9675|P9675]] qualifier based on [[P:P5247|P5247]]"
  3. 12w ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    P14541 → 2BinPA
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
  4. 12w ago · Susmuffin · 2026-07-08 view diff on Wikidata ↗
    Harper's tag → down-syndrome
    "/* wbsetclaim-create:1||1 */ [[Property:P13772]]: down-syndrome, Matched to [[:toollabs:mix-n-match/#/entry/289932333|down syndrome (#289932333)]] in [[:toollabs:mix-n-match/#/catalog/7915|Harper's ta"
  5. 13w ago · JhealdBatch bot · 2026-07-03 view diff on Wikidata ↗
    Subclass of → chromosomal disease, trisomy, total autosomal trisomy +1
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/39732|batch #39732]]: rm redundant subclass"
  6. 16w ago · Jindřich Rubeš · 2026-06-11 view diff on Wikidata ↗
    Svkkl authority id → h0000904-Downuv-syndrom
    "/* wbcreateclaim-create:1| */ [[Property:P9322]]: h0000904-Downuv-syndrom, [[:toollabs:quickstatements/#/batch/259496|batch #259496]]"
  7. 19w ago · Twofivesixbot bot · 2026-05-19 view diff on Wikidata ↗
    Symptoms and signs → otitis media, obstructive sleep apnea, heart disease +1
    "/* wbsetclaim-update-qualifiers:1||1|8 */ [[Property:P2347]]: 4177, mv to monolingual text names on YSO statements"
  8. 20w 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.