redefinition of SI base units

revised definitions of the SI base units, adopted at the 26th General Conference on Weights and Measures (CGPM), that came into force on 20 May 2019
Event occurrence Q3076763
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redefinition of SI base units

Summary

redefinition of SI base units is an occurrence[1]. It ranks in the top 7% of occurrence entities by monthly Wikipedia readership (371 views/month).[2]

Key Facts

  • redefinition of SI base units's image is recorded as Unit relations in the new SI.svg[3].
  • redefinition of SI base units's instance of is recorded as occurrence[4].
  • redefinition of SI base units's instance of is recorded as change[5].
  • redefinition of SI base units's instance of is recorded as Wikibase reason for deprecated rank[6].
  • redefinition of SI base units's Commons category is recorded as 2019 redefinition of the SI base units[7].
  • redefinition of SI base units's point in time is recorded as +2018-11-16T00:00:00Z[8].
  • redefinition of SI base units's Freebase ID is recorded as /m/0g57jrt[9].
  • redefinition of SI base units's significant event is recorded as coming into force[10].
  • redefinition of SI base units's facet of is recorded as International System of Units[11].
  • redefinition of SI base units's facet of is recorded as SI base unit[12].

Why It Matters

redefinition of SI base units ranks in the top 7% of occurrence entities by monthly Wikipedia readership (371 views/month).[2] It has Wikipedia articles in 18 language editions, a strong signal of global cultural recognition.[13] It 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] . Freebase Data Dumps. wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] . Wikidata sitelinks. wikidata.org.
  3. [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). redefinition of SI base units. Retrieved May 3, 2026, from https://4ort.xyz/entity/redefinition-of-si-base-units
MLA “redefinition of SI base units.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/redefinition-of-si-base-units.
BibTeX @misc{4ortxyz_redefinition-of-si-base-units_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{redefinition of SI base units}}, year = {2026}, url = {https://4ort.xyz/entity/redefinition-of-si-base-units}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): redefinition of SI base units — https://4ort.xyz/entity/redefinition-of-si-base-units (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/redefinition-of-si-base-units · Last refreshed: