399

year
Intangible year Q48150
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399

Summary

399 is a year[1]. 399 ranks in the top 3% of year entities by monthly Wikipedia readership (51 views/month).[2]

Key Facts

  • 399's instance of is recorded as year[3].
  • 399's follows is recorded as 398[4].
  • 399's followed by is recorded as 400[5].
  • 399's part of is recorded as 390s[6].
  • 399's Commons category is recorded as 399[7].
  • 399's point in time is recorded as +0399-01-01T00:00:00Z[8].
  • 399's topic's main category is recorded as Category:399[9].
  • 399's has list is recorded as list of state leaders in 399[10].
  • 399's permanent duplicated item is recorded as Q31800120[11].
  • 399's Cathopedia article ID is recorded as 399[12].
  • 399's category for births in this time period is recorded as Category:399 births[13].
  • 399's category for deaths in this time period is recorded as Category:399 deaths[14].

Why It Matters

399 ranks in the top 3% of year entities by monthly Wikipedia readership (51 views/month).[2] 399 has Wikipedia articles in 29 language editions, a strong signal of global cultural recognition.[15]

📑 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). 399. Retrieved May 3, 2026, from https://4ort.xyz/entity/399
MLA “399.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/399.
BibTeX @misc{4ortxyz_399_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{399}}, year = {2026}, url = {https://4ort.xyz/entity/399}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 399 — https://4ort.xyz/entity/399 (retrieved 2026-05-03)

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