Pytheas

VOYAGE

Pytheas described his travels in a '' Periplus '' titled ''On the Ocean'' (Περι του Ωκεανου). It has not survived; only excerpts remain, quoted or paraphrased by later authors. Some of them, Polybius and Strabo , accused Pytheas of documenting a fictitious journey he could never have funded. His story is, however, plausible. The trip may have been underwritten by a wealthy patron; it is speculated that Alexander The Great may have been one of them in a quest to explore the unexplored western regions. Pytheas estimated the circumference of Great Britain within 2.5% of modern estimates. There is some evidence he used the Pole Star to fix latitude and understood the relationships between tides and phases of the Moon. In northern Spain , he studied the Tide s, and may have discovered that they are caused by the Moon . This discovery was known to Posidonius .

Pytheas was not the first person to sail up into the North Sea territories and around Great Britain. Trade between Gaul and Great Britain was already routine; fishermen and others would travel to the Orkneys , Norway or Shetland . The Roman Avienus writing in the 4th century mentions an early Greek voyage, possibly from the 6th century BCE. A recent conjectural reconstruction of the journey Pytheas documented has him traveling from Marseille in succession to Bordeaux , Nantes , Land's End , Plymouth , the Isle Of Man , Outer Hebrides , Orkneys, Iceland , Great Britain's east coast, Kent , Helgoland , returning finally to Marseille.

The start of Pytheas's voyage is unknown. The Carthaginians had closed the Strait Of Gibraltar to all ships from other nations. Some historians therefore believe that he travelled overland to the mouth of the Loire or the Garonne . Others believe that, to avoid the Carthaginian blockade, he may have stuck close to land and sailed only at night. It is also possible he took advantage of a temporary lapse in the blockade, known to have taken place around the time he travelled.

Cornwall was important because it was the main source of Tin . Pytheas studied the production and processing of tin there. During his circumnavigation of Great Britain, he found that tides rose very high there. He recorded the local name of the islands in Greek as ''Prettanike'', which Diodorus later rendered ''Pretannia''. This supports theories that the coastal inhabitants of Cornwall may have called themselves ''Pretani'' or ''Priteni'', 'Painted' or 'Tattooed' people, a term Romans Latinised as ''Picti'' ( Picts ). He is quoted as referring to the British Isles as the "Isles of the Pretani."

Pytheas visited an island six days sailing north of Great Britain, called Thule . It has been suggested that Thule may refer to Iceland but parts of the Norwegian coast, the Shetland Islands and Faroe Islands have also been suggested by historians. Pytheas says Thule was an agricultural country that produced Honey . Its inhabitants ate fruits and drank Milk , and made a drink out of Grain and honey. Unlike the people from Southern Europe, they had Barn s, and threshed their grain there rather than outside.

He said he was shown the place where the sun went to sleep, and he noted that the night in Thule was only two to three hours. One day further north the congealed sea began, he claimed. As Strabo says (as quoted in Chevallier 1984):

Pytheas also speaks of the waters around Thule and of those places where land properly speaking no longer exists, nor sea nor air, but a mixture of these things, like a "marine lung", in which it is said that earth and water and all things are in suspension as if this something was a link between all these elements, on which one can neither walk nor sail.

The term used for "marine lung" actually means Jellyfish , and modern scientists believe that Pytheas here tried to describe the formation of Pancake Ice at the edge of the Drift Ice , where sea, slush, and ice mix, surrounded by Fog .

After completing his survey of Great Britain, Pytheas travelled to the shallows on the continental North Sea coast. He may also have visited the Baltic Sea , but he did visit an island which was a source of Amber , probably Helgoland .

He may have returned the way he came; or by land, following the Rhine and Rhône rivers.

LITERARY INFLUENCE

It is clear that Pytheas' own writings were a central source of information to later periods, and possibly the only source. The astronomical author Geminus Of Rhodes mentions a "Description of the Ocean". Marcianus , the scholiast on Apollonius Of Rhodes , mentions a ''periodos ges'' (a trip around the earth) or " Periplus " (a sail around). As is common with ancient texts, multiple titles may represent a single source, for example, if a title refers to a section rather than the whole. Whether one or many, none of Pytheas' own writings remain, and extant accounts of his voyage are primarily contained in Strabo, Diodorus Of Sicily and Pliny The Elder .

BOOKS AND ARTICLES

Chanin-Morris, R. (2005) "The Edge of the World", Independent

Cunliffe, B. (2002) ''The extraordinary voyage of Pytheas the Greek: The man who discovered Britain'' (revised ed.) Walker & Co ISBN 0802713939 also in Penguin ISBN 0142002542

Roseman, C. H. (1994) ''Pytheas of Massilia, On the ocean: Text, translation and commentary'' Ares Publishing ISBN 0890055459

Frye, J. & Frye H. (1985) ''North to Thule: An imagined narrative of the famous lost sea voyage of Pytheas of Massalia in the 4th century B.C.'' ISBN 0912697202

Chevallier, R. (1984) The Greco-Roman Conception of the North from Pytheas to Tacitus (in Arctic, vol. 37, no. 4, Dec. 1984, p. 341-346)

Stefansson, V (1940) ''Ultima Thule: Further Mysteries of the Arctic''

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Pytheas