Question: What is the name of the founder of the famous chain of survey triangulations stretching from Hammerfest to the Black Sea?
Sentence (from "Struve Geodetic Arc"): The Struve Geodetic Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through ten countries and over 2,820 km, which yielded the first accurate measurement of a meridian.
Relevant evidence: Yes