Ancient civilizations generally understood the Earth to be round.
* Ancient Greeks: Philosophers like Pythagoras and Aristotle made observations and arguments that supported a spherical Earth, using things like the curvature of the Earth's shadow on the moon during a lunar eclipse.
* Ancient Egyptians: Their understanding of astronomy and the movement of celestial bodies also pointed to a spherical Earth.
* Ancient Chinese: Similarly, early Chinese astronomers made observations and calculations that supported a round Earth.
The flat Earth idea did exist in some cultures, but not as a universal belief.
* Some pre-Socratic Greek philosophers (before the time of Aristotle) proposed a flat Earth, but their views were largely discarded by later Greek thinkers.
* Some ancient religious texts: Certain religious texts might have portrayed the Earth as flat, but this was often allegorical and not meant to be taken literally.
The idea of a flat Earth resurfaced in Europe during the Middle Ages, but it was never the dominant view.
* The Church: While some medieval scholars argued for a flat Earth, the Church itself didn't hold a definitive stance.
* Scientific advancement: As scientific observations and navigation improved during the Renaissance and Enlightenment, the evidence for a round Earth became undeniable.
Today, the idea of a flat Earth is a fringe belief.
* Scientific evidence: Overwhelming evidence from space exploration, satellite imagery, and scientific observations proves the Earth is a sphere.
* Misinformation and conspiracy theories: The flat Earth belief is now primarily associated with conspiracy theories and misinformation spread online.
In short: While there were periods of time when some people believed the Earth was flat, the idea of a round Earth was the dominant view in many ancient civilizations, and is now overwhelmingly supported by scientific evidence.
