66th meridian east
Line of longitude

The meridian 66° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 66th meridian east forms a great circle with the 114th meridian west.
“66th meridian east” enters the record as line of longitude. Crown Archives preserves that source wording while asking what 66th, meridian and east can confirm, complicate or overturn.
Why this record matters
“66th meridian east” is worth following because a concise public description often conceals a longer documentary argument. Here, 66th, meridian and east provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 30, 2025. The linked authority identifier is Q2701777. Authority coordinates are 0.000, 66.000. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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
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The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “66th meridian east”, its source revision and the description used here.
- Expand the search: follow 66th meridian east primary sources, 66th meridian east archive and 66th 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
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Search terms from this dossier
This entry incorporates text from “66th 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.