For example, in the “Introduction” to Bulfinch’s Mythology, Bulfinch writes:

The Greek poets believed the earth to be flat and circular, their own country occupying the middle of it, the central point being either Mount Olympus, the abode of the gods, or Delphi, so famous for its oracle.
What can be inferred by this information?

The Greeks didn’t travel far beyond their own region.
Ancient Greeks at the center of the map
The poets did not respect the gods as did the average person.
The gods were not all knowing.