There are two ways to measure the Earth: one by walking, the other by thinking.

Calculated Earth's circumference

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Details

Context

Explaining geodesy

Date / Period

240 BCE

Source

https://www.britannica.com/biography/Eratosthenes

Verification

Unverifiable

Explanation

Found in 1 providers: deepseek

Method

Cross Reference

Sources Checked

1 source

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