Noted Greek researcher Eratosthenes postulated that the earth rotated on an axis and even was a certain degree tilted as it did so. He also estimated the diameter of the planet. All these were added vital facts about earth’s discovery during that time. However, all these “facts” were still considered hearsay by some people until a proof beyond doubt is established. One day, an ambitious expedition around the world put all doubts to rest. It established the above theories as facts.
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