How did people know that the world was round before they could see it from space?
by 
AnonymousNerdfighter
ANSWERS: 6
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They just guessed because the sun came up in the east and set in the West.If the earth were flat how would that be possible. Although there are still a flat world society.
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I believe it was when Christopher Columbus sailed to the Western part of the world, from West Europe, and stumbled upon the West Indies, to find new trading routes to eastern Europe. I am not positive about this though.
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The earth is spoken of as being a sphere and hanging upon nothing in the Bible. They didn't think the earth was flat and knew it was round.
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I believe there is a mathematical thing you can do with shadows from tall objects or something.
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"GOOGLE EARTH"
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They (being in the Northern Hemisphere) noticed that as they journeyed north, the sun became lower in the sky and never appeared completely overhead, whereas if they went south, at certain times of the year it was exactly overhead. A particular mathematicina based in Alexandria was told that on a certain day the sun at no0on was directly overheade at Syrene, in the south of Egypt. He measured the angle of the sun on the same day in Alexandria, and calculated a valuie for the size of the earth that is within 2% of our current value. The horizon is also a bit of a giveaway. On a flat earth, ships would just get smaller as they sail away, not disappear from the bottom up.
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