171st meridian east
line of longitude east of the Greenwich Meridian

The meridian 171° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, New Zealand, the Southern Ocean, and Antarctica to the South Pole.
The 171st meridian east forms a great circle with the 9th meridian west.
The public source identifies “171st meridian east” as line of longitude east of the Greenwich Meridian. This brief keeps that definition visible, then builds a research path around 171st, meridian and east.
Why this record matters
A short description can identify a subject without explaining its stakes. For “171st meridian east”, the useful work is to connect “line of longitude east of the Greenwich Meridian” to the records capable of establishing context and consequence.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 1, 2025. The linked authority identifier is Q2663763. Authority coordinates are 0.000, 171.000. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “171st meridian east”, its source revision and the description used here.
- Expand the search: follow 171st meridian east primary sources, 171st meridian east archive and 171st research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “171st meridian east”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “171st meridian east” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.