Iceland? Pliny and Strabo, who cite Pytheas (ca 325 BC?), place Thule at 6 navigation days from (Great) Britain, which may be 400-600 nautical miles. Iceland is at 450 miles north of Scotland. The mention of six months long days and nights means a position beyond the Arctic Circle, which corresponds better to Iceland than to the Shetland islands.

Property	Value
hasGeometry (gsp:hasGeometry)	Iceland? Pliny and Strabo, who cite Pytheas (ca 325 BC?), place Thule at 6 navigation days from (Great) Britain, which may be 400-600 nautical miles. Iceland is at 450 miles north of Scotland. The mention of six months long days and nights means a position beyond the Arctic Circle, which corresponds better to Iceland than to the Shetland islands. Geometry (ap:1_geom)
type (rdf:type)	Harbour (Harbour) [x]
label (rdfs:label)	Iceland? Pliny and Strabo, who cite Pytheas (ca 325 BC?), place Thule at 6 navigation days from (Great) Britain, which may be 400-600 nautical miles. (...) Iceland is at 450 miles north of Scotland. The mention of six months long days and nights means a position beyond the Arctic Circle, which corresponds better to Iceland than to the Shetland islands. (rdf:langString) (iso6391:en)
sameAs (owl:sameAs)	Thule (wde:Q671008) [x]
note (skos:note)	Journes (2000) (xsd:string)
Pleiades ID (wdt:P1584)	20624 (20624) [x]
country (wdt:P17)	Iceland? (xmls:string)
Trismegistos Geo ID (wdt:P1958)	19731 (19731) [x]
ToposText place ID (wdt:P8068)	000000UThu (000000UThu) [x]
Is member (rdfs:member) of	Harbour Instances Collection (ap:Harbour_collection)

Property	Value
creator (dce:creator)	arthur_de_graauw (arthur_de_graauw) [x]
partOf (terms:partOf)	Geodatabase of Ancient Ports and Harbours (xls table) (ap:bib_deGrauw_2013_GeoDB)
inDataset (void:inDataset)	ap_dataset (ap:ap_dataset) [153626 gsp:asWKT]