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Japan / 1803 / DISPUTED

Utsuro-bune legend

A Japanese legend describes a hollow vessel and strange woman arriving on shore, later interpreted by some as UFO-like.

Utsuro-bune legend localized visual context from Wikimedia Commons
Localized Wikimedia Commons visual context for Utsuro-bune legend. Because this is a C/D-grade or disputed case, the image is not treated as proof of an anomalous object; it supports source identification and reader orientation only.
CredibilityD
StatusDISPUTED
Evidence types2
Official sources0
Last reviewed2026
Archive assessment

This case is disputed. The archive preserves the claims while separating evidence from interpretation.

Documentation
Limited documentation
Primary location
Hitachi Province
Source base
3 linked records
Research use
Comparison case

Case dossier

Utsuro-bune legend is a notable UFO/UAP report from Hitachi Province. The case is tracked as part of the launch archive because it is searchable, source-linked, and useful for comparison across countries, eras, evidence types, and explanations.

Timeline

  • Utsuro-bune legend is reported in Hitachi Province.
  • The case enters public UFO/UAP discussion through reports, archives, or later summaries.
  • The case is indexed with sources, evidence notes, and skeptical context.

Evidence matrix

Reported evidencefolklore texts
Reported evidenceillustrations

Evidence assessment

Reported evidence includes folklore texts, illustrations.

folklore textsillustrations

Official context

The case is folklore and historical literature, not a modern investigation.

Skeptical notes

Myth, literary motif, and cultural storytelling explain the record.

Sources