period

subdivision of geological time; shorter than an era and longer than an epoch
Intangible unit_of_time Q392928
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period

Summary

period is an unit of time[1]. period draws 712 Wikipedia views per month (unit_of_time category, ranking #26 of 82).[2]

Key Facts

  • period's instance of is recorded as unit of time[3].
  • period is a type of geochronological unit[4].
  • period is part of era[5].
  • period's Commons category is recorded as Geology by period[6].
  • period comprises epoch[7].
  • period comprises subperiod[8].
  • period's topic's main category is recorded as Category:Geological periods[9].
  • period's described by source is recorded as Brockhaus and Efron Encyclopedic Dictionary[10].
  • period's described by source is recorded as Granat Encyclopedic Dictionary[11].
  • period's described by source is recorded as Basque Literature Terms Dictionary[12].
  • period's topic has template is recorded as Template:Geological period[13].
  • period's standards body is recorded as International Commission on Stratigraphy[14].
  • period's equivalent class is recorded as http://dbpedia.org/ontology/GeologicalPeriod[15].
  • period's different from is recorded as system[16].
  • period's different from is recorded as archaeological period[17].
  • period's studied by is recorded as geochronology[18].

Body

Definition and Type

period's instance of is recorded as unit of time[3]. period is a type of geochronological unit[4].

Use and Application

Components include epoch[7], an unit of time[19] and subperiod[8]. period is part of era[5].

Why It Matters

period draws 712 Wikipedia views per month (unit_of_time category, ranking #26 of 82).[2] period has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[20] period is known by 32 alternative names across languages and contexts.[21]

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] . euskaltzaindia.eus. Retrieved . euskaltzaindia.eus. Provenance: 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.

Inline context (facts about related entities)

  1. [19] . 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. [20] . Wikidata sitelinks. wikidata.org.
  3. [21] . 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). period. Retrieved May 3, 2026, from https://4ort.xyz/entity/period-q392928
MLA “period.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/period-q392928.
BibTeX @misc{4ortxyz_period-q392928_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{period}}, year = {2026}, url = {https://4ort.xyz/entity/period-q392928}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): period — https://4ort.xyz/entity/period-q392928 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/period-q392928 · 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. 10d ago · Nyuhn · 2026-07-10 view diff on Wikidata ↗
    Topic's main category Category:Geological periods
    Topic has template Template:Geological period
    Has parts
    Has part(s) epoch, subperiod
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/40849|batch #40849]]: ZGBK ID"
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