- 4th century bc, Greek navigator. He was the first Greek to visit and describe the coasts of Spain, France, and the British Isles and may have reached Iceland
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Examples from the Web for pytheas
Pytheas, who discovered the British Isles, was "a great mathematician."
Pytheas said that Thule was six days' sail north of Britain.
But it is evident that Pytheas had more than this business motive for his journey.
First, that the country spoken of by Pytheas was inhabited (by barbarians).
Cleomedes also tells us that Pytheas is said to have been in Thule.