If someone was sitting in the superdome and saying "I am not in a dome, dumbass", you would be like "Hello? Superdome much? Duuuh, retard". It's the same with earth. Therefore earth is flat. QED
The earth is flat, you godda PROBLEM with that punk? Ima BUST YER ASS mothafucka
Didn't just believe the Earth was flat back then, they also thought that extraordinary beings were at the end/edge. Probably like Angels, demons or aliens with advanced technology and thinking.