What sort of evidence is there that the earth is or is not flat?
At this point, there is such overwhelming evidence that the earth is round and revolves around the sun that the only way in which it makes sense to discuss flat earth theories is in historical context.
Before the advent of modern technology and science, or understanding of gravity, many cultures considered the earth to be flat. Much of this was simply intuitive, due to the fact that it appears flat as we walk or ride horses or sail across...
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