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640

year
Intangible year Q30626
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640

Summary

640 is a year[1]. 640 has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • 640's instance of is recorded as year[3].
  • 640 followed 639[4].
  • 640 was followed by 641[5].
  • 640 is part of 640s[6].
  • 640's Commons category is recorded as 640[7].
  • 640 took place on January 1, 640[8].
  • 640's topic's main category is recorded as Category:640[9].
  • 640's has list is recorded as list of state leaders in 640[10].
  • 640's permanent duplicated item is recorded as Q31800699[11].
  • 640's category for births in this time period is recorded as Category:640 births[12].
  • 640's category for deaths in this time period is recorded as Category:640 deaths[13].

Body

Definition and Type

640's instance of is recorded as year[3].

Use and Application

640 is part of 640s[6].

Why It Matters

640 has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[2] 640 is known by 19 alternative names across languages and contexts.[14]

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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [14] ↑ . 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). 640. Retrieved May 3, 2026, from https://4ort.xyz/entity/640
MLA “640.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/640.
BibTeX @misc{4ortxyz_640_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{640}}, year = {2026}, url = {https://4ort.xyz/entity/640}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 640 — https://4ort.xyz/entity/640 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/640 · 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 · MatSuBot bot · 2026-06-15 view diff on Wikidata ↗
    Has list → list of state leaders in 640
    Point in time → —
    Follows → 639
    Followed by → 641
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update-languages-short:0||diq, ary */ import labels from sitelinks"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.