We all know that the Earth is round, and most of us have even seen pictures of it from space. But how could a person have figured this out 2000 years ago if all he could see were flat, endless expanses of land on the horizon?

It took a combination of great imagination and a little math. Eratosthenes used both as he came to the conclusion that these seemingly flat, infinite stretches of land actually form a sphere “floating” freely in the universe.

Explore this magnificent story set in Egypt 2000 years ago and learn about one of the most incredible discoveries of mankind.

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  • the man who discovewred earth storybook kids
  • the man who discovewred earth storybook kids
  • the man who discovewred earth storybook kids
  • the man who discovewred earth storybook kids
  • the man who discovewred earth storybook kids
  • the man who discovewred earth storybook kids
  • the man who discovewred earth storybook kids