A bit hyperbolic, don't you think?
more Hellenocentric :)
To the ancient Greeks the “world” was the Greek world with some “fringes” along the edges :) — kind of like the Chinese “middle Kingdom” point of view.
As an aside - this was also the view to some extent in the united Roman empire that “the world” meant “the Roman world” and the rest were, well, exotic “rest”