21st century

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Intangible century Q6939
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Summary

21st century is a century[1]. It ranks in the top 1% of century entities by monthly Wikipedia readership (13,696 views/month).[2]

Key Facts

  • Follows: 20th century[3]
  • Followed by: 22nd century[4]
  • Part of: 3rd millennium[5]
  • Commons category: 21st century[6]
  • Has part(s): 2010s[7], 2020s[8], 2030s[9], 2040s[10], 2050s[11], 2060s[12], 2070s[13], 2080s[14], 2090s[15], 2000s[16]
  • Start time: January 1, 2001[17]
  • End time: December 31, 2100[18]
  • Point in time: January 1, 2100[19]
  • Topic's main category: Category:21st century[20]
  • Topic's main Wikimedia portal: Portal:21st century[21]
  • Stack Exchange tag: https://history.stackexchange.com/tags/21st-century[22]
  • Different from: 21st century BC[23]
  • Name: 21st-century[24]
  • Exact match: http://data.culture.fr/thesaurus/resource/ark:/67717/T4-46[25]
  • Permanent duplicated item: Q113561423[26], Q31798761[27]
  • Related category: Category:21st century-related lists[28]
  • Category for births in this time period: Category:21st-century births[29]
  • Category for deaths in this time period: Category:21st-century deaths[30]

Body

Influence

Things named for 21st century include Northrop Grumman B-21 Raider[31], an aircraft family[32], in United States[33]; socialism of the it[34], a political concept[35]; Project 211[36], a closed project[37], in People's Republic of China[38], founded in 1995[39]; 21st Century Museum of Contemporary Art[40], a contemporary art museum[41], in Japan[42], founded in 2004[43]; Niigata Television Network 21[44], a business[45], in Japan[46], founded in 1983[47], headquartered in Niigata Prefecture[48]; and Cosmo Clock 21[49], a Ferris wheel[50], in Japan[51], founded in 1989[52].

Why It Matters

21st century has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[53] It is known by 80 alternative names across languages and contexts.[54]

Entities named for it include Northrop Grumman B-21 Raider[31], an aircraft family[32], in United States[33]; socialism of the it[34], a political concept[35]; Project 211[36], a closed project[37], in People's Republic of China[38], founded in 1995[39]; 21st Century Museum of Contemporary Art[40], a contemporary art museum[41], in Japan[42], founded in 2004[43]; Niigata Television Network 21[44], a business[45], in Japan[46], founded in 1983[47], headquartered in Niigata Prefecture[48]; and Cosmo Clock 21[49], a Ferris wheel[50], in Japan[51], founded in 1989[52].

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.
  26. [28] ↑ . wikidata.org.
  27. [29] ↑ . wikidata.org.
  28. [30] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [31] ↑ . wikidata.org. → on this site
  2. [34] ↑ . wikidata.org. → on this site
  3. [36] ↑ . wikidata.org. → on this site
  4. [40] ↑ . wikidata.org. → on this site
  5. [44] ↑ . wikidata.org. → on this site
  6. [49] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [32] ↑ . Wikidata. wikidata.org. → on this site
  2. [33] ↑ . Wikidata. wikidata.org. → on this site
  3. [35] ↑ . Wikidata. wikidata.org. → on this site
  4. [37] ↑ . Wikidata. wikidata.org. → on this site
  5. [38] ↑ . Wikidata. wikidata.org. → on this site
  6. [39] ↑ . Wikidata. wikidata.org. → on this site
  7. [41] ↑ . Wikidata. wikidata.org. → on this site
  8. [42] ↑ . Wikidata. wikidata.org. → on this site
  9. [43] ↑ . Wikidata. wikidata.org. → on this site
  10. [45] ↑ . Wikidata. wikidata.org. → on this site
  11. [46] ↑ . Wikidata. wikidata.org. → on this site
  12. [47] ↑ . Wikidata. wikidata.org. → on this site
  13. [48] ↑ . Wikidata. wikidata.org. → on this site
  14. [50] ↑ . Wikidata. wikidata.org. → on this site
  15. [51] ↑ . Wikidata. wikidata.org. → on this site
  16. [52] ↑ . 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. [53] ↑ . Wikidata sitelinks. wikidata.org.
  3. [54] ↑ . 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). 21st century. Retrieved October 13, 2026, from https://4ort.xyz/entity/21st-century
MLA “21st century.” 4ort.xyz Knowledge Graph, 4ort.xyz, 13 Oct. 2026, https://4ort.xyz/entity/21st-century.
BibTeX @misc{4ortxyz_21st-century_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{21st century}}, year = {2026}, url = {https://4ort.xyz/entity/21st-century}, note = {Accessed: 2026-10-13}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 21st century — https://4ort.xyz/entity/21st-century (retrieved 2026-10-13)

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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. 11d ago · MsynBot bot · 2026-10-04 view diff on Wikidata ↗
    Sitelink count → 184
    Wikipedia languages → ['af', 'als', 'am', 'an', 'ar', 'ary', 'arz', 'ast', 'av', 'avk', 'az', 'azb', '
    Claims rich → —
    "/* wbeditentity-update:0| */ add badge sitelink to redirect to nahwiki sitelink; see [[Wikidata:Sitelinks to redirects]] for details #msynbotTask10"
  2. 4w ago · VGMaintenanceBot bot · 2026-09-12 view diff on Wikidata ↗
    Harper's tag → 21st-century, twenty-first-century
    "/* wbsetqualifier-add:1| */ Mediawiki page id: 12495, Add qualifier to Cathopedia article ID `XXI_secolo`"
  3. 16w ago · Susmuffin · 2026-06-20 view diff on Wikidata ↗
    Harper's tag → 21st-century, twenty-first-century
    "/* wbsetclaim-create:1||1 */ Harper's tag: 21st-century, Matched to [[:toollabs:mix-n-match/#/entry/289916760|21st century (#289916760)]] in [[:toollabs:mix-n-match/#/catalog/7915|Harper's tag]"
  4. 17w ago · Jindřich Rubeš · 2026-06-12 view diff on Wikidata ↗
    Svkkl authority id → 0261283-21-stoleti, 0421715-21-stoleti
    "/* wbcreateclaim-create:1| */ Svkkl authority id: 0261283-21-stoleti, [[:toollabs:quickstatements/#/batch/259547|batch #259547]]"
  5. 21w ago · DanGFSouza · 2026-05-21 view diff on Wikidata ↗
    Imdb keyword → 21st-century, 21th-century
    "/* wbsetclaim-create:1||1 */ Imdb keyword: 21th-century, Matched to [[:toollabs:mix-n-match/#/entry/193893070|21th century (#193893070)]] in [[:toollabs:mix-n-match/#/catalog/6965|Top 10,000 IM"
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