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3 ideas
1791 | He was the first person to say the earth is spherical [Parmenides, by Diog. Laertius] |
1794 | He was the first to discover the identity of the Morning and Evening Stars [Parmenides, by Diog. Laertius] |
420 | The cosmos is eternal not created, and is an ever-living and changing fire [Heraclitus] |