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Ancient Greek philosophers posited that the Earth was round as early as 6th Century B.C.
It is not definitively known which scientist first proved that the Earth is spherical. The discovery is variably attributed to Pythagoras, Zeno, or Hesiod.

Spherical Earth - Wikipedia

en.wikipedia.org/wiki/Spherical_Earth

The earliest reliably documented mention of the spherical Earth concept dates from around the ... "My conviction is that the Earth is a round body in the centre of the heavens, and therefore ha...

Who Discovered The Earth is Round? – Starts With A Bang

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. .... where credit is due, to Eratosthenes, for discovering the Earth was round, and ...

Who discovered that the Earth was round? | Reference.com

www.reference.com/science/discovered-earth-round-f017886abcb31897

The discovery that the Earth is round is most commonly ascribed to the ancient Greek philosopher Pythagoras, while the credit for proving it is usually given to ...

Who figured out the Earth is round? - NASA

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

It has actually been known that the Earth was round since the time of the ancient Greeks. I believe that it was Pythagoras who first proposed that the Earth was ...

The Round Earth and Christopher Columbus - ISTP

www-istp.gsfc.nasa.gov/stargaze/Scolumb.htm

Dec 12, 2004 ... Even in ancient times sailors knew that the Earth was round and ... from Egypt are not seen further north The full quotation can be found here.

who first discovered and proved the earth was round, not flat? How ...

answers.yahoo.com/question/index?qid=20060815201048AAsSEbs

For the best answers, search on this site https://shorturl.im/8QU7S here we go..... you have to do a lot of reading....:-) Answer Now that we have ...

www.ask.com/youtube?q=Who Discovered the Earth Was Round?&v=HMHJ5BoXMnw
Dec 11, 2014 ... How did Ancient Greek Philosophers Know the Earth was Round? ... Amazing Documentary and Discovery HD Channel 505,487 views. 1:34: ...

Who first discovered the world was round? | How It Works Magazine

www.howitworksdaily.com/who-first-discovered-the-world-was-round/

Dec 29, 2012 ... We've known Earth is round for a longer time than you might expect…

Top 5 Misconceptions About Columbus - Live Science

www.livescience.com/16468-christopher-columbus-myths-flat-earth-discovered-americas.html

Oct 9, 2011 ... Find out why we celebrate Columbus as the man who discovered the ... Greek mathematicians had already proven that the Earth was round, ...