Ancient peoples knew the Earth was a sphere much earlier than commonly thought
the verdict
SUPPORTED
the evidence backs this
confidence 75/100
Evidence shows that ancient peoples understood the Earth was a sphere as early as the 5th century BC, directly contradicting the popular misconception that ancient societies universally believed in a flat Earth.
Evidence for · 3
Wikipedia: Spherical Earth
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Reference article covering this claim directly
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More for · 2
loc.gov: The Sphere of the World
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Confirms that by the 5th century BC it was widely accepted, correcting the widespread misconception of a flat Earth.
en.wikipedia.org: Spherical Earth
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Notes the earliest documented mention dates from the 5th century BC in Greek philosophy.