 It was flat, the North Pole's in the center. There's no South Pole. And then there's just a wall of ice that kind of prevents sailors from falling off of the rim of the Earth if they go too far, kind of like the Antarctic going all around the Earth. To me, it sounds like the Game of Thrones wall of ice, you know, for the night watch. But this was what the students were taught, and they were told that the flat Earth remained stationary in space, so it's just sitting there, and the sun is revolving around us in sort of a spiral fashion.