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first day of issue

postmark on a cover, postal card or stamped envelope franked on the first day the issue is authorized for use
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first day of issue

Summary

first day of issue is a philatelic term[1]. It ranks in the top 9% of philatelic_term entities by monthly Wikipedia readership (69 views/month).[2]

Key Facts

  • first day of issue's instance of is recorded as philatelic term[3].
  • first day of issue's GND ID is recorded as 7564944-5[4].
  • first day of issue's subclass of is recorded as postmark[5].
  • first day of issue's Commons category is recorded as First day covers[6].
  • first day of issue's Freebase ID is recorded as /m/0fd3j[7].
  • first day of issue's Art & Architecture Thesaurus ID is recorded as 300195405[8].
  • first day of issue's facet of is recorded as first day cover[9].
  • first day of issue's facet of is recorded as first day sheet[10].
  • first day of issue's Great Norwegian Encyclopedia ID is recorded as førstedagsbrev[11].
  • first day of issue's Nomenclature for Museum Cataloging is recorded as 13584[12].
  • first day of issue's Lex ID is recorded as førstedagskuvert[13].
  • first day of issue's Encyclopedia of China is recorded as 230645[14].
  • first day of issue's Encyclopedia of China is recorded as 47135[15].

Body

Designation and Status

first day of issue's instance of is recorded as philatelic term[3].

Why It Matters

first day of issue ranks in the top 9% of philatelic_term entities by monthly Wikipedia readership (69 views/month).[2] It has Wikipedia articles in 21 language editions, a strong signal of global cultural recognition.[16] It is known by 19 alternative names across languages and contexts.[17]

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] ↑ . Freebase Data Dumps. 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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] ↑ . Wikidata sitelinks. wikidata.org.
  3. [17] ↑ . 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). first day of issue. Retrieved May 3, 2026, from https://4ort.xyz/entity/first-day-of-issue
MLA “first day of issue.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/first-day-of-issue.
BibTeX @misc{4ortxyz_first-day-of-issue_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{first day of issue}}, year = {2026}, url = {https://4ort.xyz/entity/first-day-of-issue}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): first day of issue — https://4ort.xyz/entity/first-day-of-issue (retrieved 2026-05-03)

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