Assertion: nautical mile | /r/HasProperty | an arcminute of a meridian
Facets:
value: in principle
type: OTHER
value: at a latitude of 45°
type: LOCATION
Source sentences:
text: France and other metric countries state that in principle a nautical mile is an arcminute of a meridian at a latitude of 45°, but that is a modern justification for a more mundane calculation that was developed a century earlier.