MARC 21

protocol for encoding machine-readable bibliographic records
Place metadata_standard Q3919686
Press Enter · cited answer in seconds

MARC 21

Summary

MARC 21 is a metadata standard[1]. It draws 1 Wikipedia views per month (metadata_standard category, ranking #12 of 10).[2]

Key Facts

  • MARC 21's field of work was bibliography[3].
  • MARC 21's instance of is recorded as metadata standard[4].
  • MARC 21's subclass of is recorded as textual data format[5].
  • MARC 21's part of is recorded as MARC standards[6].
  • MARC 21's NL CR AUT ID is recorded as ph198699[7].
  • MARC 21's official website is recorded as http://www.loc.gov/marc/marc.html[8].
  • MARC 21's Google Knowledge Graph ID is recorded as /g/121hxf1s[9].
  • MARC 21's FactGrid item ID is recorded as projectile weapon[10].
  • MARC 21's GitHub topic is recorded as marc21[11].

Body

Geography

MARC 21's part of is recorded as MARC standards[6].

Designation and Status

MARC 21's instance of is recorded as metadata standard[4].

Why It Matters

MARC 21 draws 1 Wikipedia views per month (metadata_standard category, ranking #12 of 10).[2] It has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[12] It is known by 6 alternative names across languages and contexts.[13]

📑 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). MARC 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/marc-21
MLA “MARC 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/marc-21.
BibTeX @misc{4ortxyz_marc-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{MARC 21}}, year = {2026}, url = {https://4ort.xyz/entity/marc-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): MARC 21 — https://4ort.xyz/entity/marc-21 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/marc-21 · Last refreshed: