Eratosthenes — "The sun's rays are parallel at great distances."
The sun's rays are parallel at great distances.
The sun's rays are parallel at great distances.
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"The map of the world should reflect the true dimensions of the Earth."
"Alexandria is approximately 5,000 stadia north of Syene."
"I have found a way to measure the size of the Earth with considerable accuracy."
"The library of Alexandria holds the knowledge of the world."
"The Earth is spherical, not flat."
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