congratulations. you learned to use a search engine, and posted from Wiki. But then, of course, you had to make your own spin and diverge from the facts. You just can't help yourself, can you?
conix, thought at least you might reason that when a ship went out of sight on the horizon some way back coulda felt it was headed down, or that most wouldn't reason that many map makers back when would be more comfortable seeing their place down under .. here you go ..
How the north ended up on top of the map .. bit ..