![]() ![]() Despite the scientific fact of Earth’s sphericity, pseudoscientific flat Earth conspiracy theories are espoused by modern flat Earth societies and, increasingly, by unaffiliated individuals using social media. Knowledge of the spherical Earth gradually began to spread beyond the Hellenistic world from then on. ![]() In the early fourth century BC Plato wrote about a spherical Earth, and by about 330 BC his former student Aristotle provided evidence for the spherical shape of the Earth on empirical grounds. The idea of a spherical Earth appeared in Greek philosophy with Pythagoras (6th century BC), although most pre-Socratics retained the flat Earth model. Many ancient cultures subscribed to a flat Earth cosmography, including Greece until the classical period, the Bronze Age and Iron Age civilizations of the Near East until the Hellenistic period, India until the Gupta period (early centuries AD), and China until the 17th century. As the Flat Earth Society points out, Rowbotham’s Zetetic Astronomy method essentially says the Earth is “a flat disk centered at the North Pole and bounded along its southern edge by a wall of ice, with the sun, moon, planets, and stars only a few thousand miles above Earth.The flat Earth model is an archaic conception of Earth’s shape as a plane or disk. In the 1800s, English writer Samuel Rowbotham published the book Zetetic Astronomy: Earth Not a Globe, which was based on his studies of the planet over a 10-year period. Humanity has known the Earth is round since Greek philosopher Aristotle argued that Earth was a sphere and Eratosthenes (276-195 BC) later accurately calculated the circumference of the planet. ![]() READ MORE: Astrophysicist Neil deGrasse Tyson schools rapper B.o.B over flat Earth tweets The former NBA star later said he was “joking” about his flat Earth comments.
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