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en.wikipedia.org/wiki/Spherical_Earth

The earliest reliably documented mention of the spherical Earth concept dates from around the 6th century BC when it appeared in ancient Greek philosophy but ...

starchild.gsfc.nasa.gov/docs/StarChild/questions/question54.html

I believe that it was Pythagoras who first proposed that the Earth was round ... and further away from the equator) and during the next hundred years or so, ...

scienceblogs.com/startswithabang/2011/09/21/who-discovered-the-earth-is-ro

Sep 21, 2011 ... “When Columbus lived, people thought that the earth was flat. ... Columbus was the only one of his time who believed that the Earth was round; ..... such as the discovery of Jupiter's moons, proved helioocentrism, he did not ...

www.bbc.com/earth/story/20160126-how-we-know-earth-is-round

Jan 26, 2016 ... The well-known rapper B.o.B has been on a mission to convince his Twitter followers that the Earth is flat. How can a 16-mile distance between ...

www.popsci.com/10-ways-you-can-prove-earth-is-round

Jan 26, 2016 ... Humanity has known the Earth to be round for a few millenia and I've ... of the Earth) noticed that during lunar eclipses (when the Earth's orbit ...

www.pbs.org/newshour/updates/7-diy-experiments-b-o-b-the-earth-is-round

Jan 27, 2016 ... Flat Earth thinking dates back thousands of years, when early societies like the Sumerians, Babylonians and Ancient Egyptians believed that ...

futurism.com/facts-obvious

Jan 26, 2016 ... We knew that Earth was round long before we ever went to space. ... of two and two equaling four, the Earth traversing around the Sun once a year (not ... The heliocentric model was proposed by Copernicus, and proven by ...

metro.co.uk/2016/07/19/here-are-10-proofs-that-the-earth-is-actually-flat-not-round-6016710

Jul 19, 2016 ... Here are 10 'proofs' that the Earth is actually flat, not round ... NASA tries to explain why Space Station video 'cut out' when UFO appeared.

rationalwiki.org/wiki/Flat_Earth

4 days ago ... The earth's shadow on the moon is round and two sticks in two ... Surveyors ignore curvature when surveying a project because the error .... A Greek Egyptian by the name of Eratosthenes not only proved the world was round, ...

www.seeker.com/no-earth-isnt-flat-heres-how-ancients-proved-it-1770796992.html

Jan 28, 2016 ... Scholars have known for thousands of years that Earth is round. One rapper thinks they've got it all wrong.