An explorer in the Arctic by Andreas Kornerup ( CC by SA 2.0 )
In a time when most people believed that the sun was dragged across the sky by a god, Pytheas made it to a place where the sun doesn’t rise all winter long. He found a place covered in permafrost, a frozen ocean, and drifting icebergs, and he had to come home and try to explain what he’d seen.
He made discoveries so incredible that they were literally unbelievable – and it took more than a thousand years before we found out he was telling the truth.
Who Was Pytheas?
Not much is known about Pytheas’s life. He was, we are told, “ a poor man ”, who traveled north on his own dime, without the support of any government. Everything beyond that, though, is speculation. Every word he wrote has been lost to time, and what we know of his journey comes, mainly, from people who didn’t believe him.
It’s easy to understand why the ancient world would have doubted that a poor sailor could have made the trip Pytheas made. The path north took him through the Strait of Gibraltar, a place the ancient world called the Pillars of Hercules. To get through it, he had to get past a military blockade held by the Carthaginian army.
Somehow, Pytheas and his crew snuck past an entire army – although nobody knows for sure how he did it. Modern historians have their theories, but they’re really nothing more than wild speculation. And the only explanation the ancient world left us was that Pytheas was a liar and none of it ever really happened.
The things he reported back, though, suggest that, somehow, he really did it. Somehow, snuck past an army, went on to Britain and – once there – became the person to circumnavigate the island. And he was only getting started.
The Strait of Gibraltar ( public domain )
The Discovery of Thule
After circling Britain, Pytheas went on north, in search of an undiscovered land the natives promised him was out there. This went against all reason – at the time, it was believed that there was nothing north of Britain but ocean. Pytheas’ trip would take him past the edge of the world.
After six days of sailing, he saw, jutting out of the water, the tall, rocky coastline of a land he called Thule. Nobody knows for sure what country he discovered – it may have been Iceland or Norway . It would be more than a thousand years before any European attempted the trip again.
His records of the sky, though, suggest he really was somewhere near the Arctic Circle. He recorded how the stars overhead shifted, and they reflect the sky you’d actually see from around Iceland. And he recorded how much shorter the days became as he traveled north.
He claims that there were people living there when he arrived – which, if Thule is Iceland, would be incredible, as the country was deserted when it was colonized 1000 years after his journey. These people, he said, had to struggle to live in a place where the sun barely shone and few plants and animals could live. They lived off millet, fruit, and roots, unable to grow much else.
“There is no night at the summer solstice ,” Pytheas reported back from Thule. This, for a person living in the 4 th century BC, must have been an incredible revelation. He was seeing something that no Greek had ever seen – a place where the sun didn’t rise all winter long.
A 16 th century map of the Arctic ( public domain )
The Frozen Ocean
Pytheas had gone further north than any European had ever traveled – but he didn’t stop there. He sailed on, a day’s journey north of Thule, and reached a place he didn’t know how to describe. There was something in the water which he said was not “land properly so‑called, or sea, or air, but a kind of substance concreted from all these elements, resembling a sea-lungs.”
It’s believed, today, that he was trying to describe a sea filled with drifting pancake ice . With no frame of reference to describe it, though, he had to resort to some strange word choices. He called it a “jellyfish-like substance”, which “you can neither walk nor sail upon”.