What is the name of the founder of the famous chain of survey triangulations stretching from Hammerfest to the Black Sea?
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.
Cosmas Indicopleustes Cosmas Indicopleustes (Greek Κοσμᾶς Ἰνδικοπλεύστης , literally "Cosmas who sailed to India"; also known as Cosmas the Monk) was a Greek merchant and later hermit from Alexandria of Egypt. He was a 6th-century traveller, who made several voyages to India during the reign of emperor Justinian. His work "Christian Topography" contained some of the earliest and most famous world maps.