What this unit was
standard wine bottle (750 mL) is modelled here as a liquid standard of the Modern packaged alcohol tradition, associated with International during Current common and specified package size. The converter represents one mL as 0.75 L; its basis is defined-package-volume. This is a defined or exact matrix anchor.
Its present role is chiefly comparative: it provides a stable reference for storage, rations, trade, and the circulation of drink or other commodities, rather than evidence that earlier cultures used a modern definition. A vessel name is not automatically the capacity of every surviving vessel.
Evidence of use and sources
The working value is traceable to GOV.UK specified alcohol quantities. Its record is classified as exact confidence and uses the stated basis rather than an assumed culture-wide constant.
The local library supplies contextual quotations; the linked record source remains authoritative for the modern definition.
“the ten millionth of the meridian quadrant ... be called a metre”
Standard measures of United States, Great Britain, and France, PDF p. 16. metric origin proposal
“A standard is a physical representation of a unit.”
A dictionary of weights and measures for the British Isles, PDF p. 31. standard versus unit
“the omission of necessary facts”
Standard measures of United States, Great Britain, and France, PDF p. 10. conditions required for comparison
Working definition
standard wine bottle (750 mL) is represented as a Modern packaged alcohol standard associated with International during Current common and specified package size.
The converter uses 0.75 L per unit.
How to use it
Basis: defined-package-volume; confidence: exact. A shared historical name does not make this value portable to another period or polity.
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