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Symmetry454

proposal for calendar reform, with mean year =365+71/293 days
Thing general Q592891
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Symmetry454

Summary

Symmetry454 ranks in the top 2% of general entities by monthly Wikipedia readership (47 views/month).[1]

Key Facts

  • Symmetry454's subclass of is recorded as solar calendar[2].
  • Symmetry454's Freebase ID is recorded as /m/04vt3z[3].
  • Symmetry454's defining formula is recorded as \operatorname{IsLeapYear}(y) = \begin{cases} \top & 52y \bmod 293 \in {147,148,\dotsc,198} \ \bot & 52y \bmod 293 \not\in {147,148,\dotsc,198} \end{cases}[4].
  • Symmetry454's maintained by WikiProject is recorded as WikiProject Mathematics[5].

Why It Matters

Symmetry454 ranks in the top 2% of general entities by monthly Wikipedia readership (47 views/month).[1] Symmetry454 has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[6] Symmetry454 is known by 6 alternative names across languages and contexts.[7]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . Freebase Data Dumps. wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [6] ↑ . Wikidata sitelinks. wikidata.org.
  3. [7] ↑ . 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). Symmetry454. Retrieved April 10, 2026, from https://4ort.xyz/entity/symmetry454
MLA “Symmetry454.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/symmetry454.
BibTeX @misc{4ortxyz_symmetry454_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Symmetry454}}, year = {2026}, url = {https://4ort.xyz/entity/symmetry454}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Symmetry454 — https://4ort.xyz/entity/symmetry454 (retrieved 2026-04-10)

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