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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 ... the idea, but this may reflect the ancient Greek practice of ascribing every discovery to one or ano...

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 ... But this doesn't tell you whether the Earth is a flat disc or a round sphere; .... Who knows maybe they will finally discover what makes a TickleMe ...

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 ...

The Round Earth and Christopher Columbus - Educational Web Sites

www.phy6.org/stargaze/Scolumb.htm

Mar 31, 2014 ... (8) The Round Earth and Christopher Columbus .... He certainly did call the inhabitants of the lands he discovered "Indians," a mislabeling ...

Who figured out the Earth is round? - StarChild - 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 ...

Who was the first person to prove the Earth was round? - Quora

www.quora.com/Who-was-the-first-person-to-prove-the-Earth-was-round

Although Aristotle makes some observational arguments for the earth being round, it seems ... What was Pythagoras' discovery about the Earth being round?

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 ...

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…

History of the Round Earth Theory | Launchistory

launchistory.blogspot.com/2012/06/history-of-round-earth-theory.html

Jun 19, 2012 ... For thousands of years the earth was thought to be anything but a sphere by ancient people. The Mesopotamians and Egyptians saw the earth ...