The earliest reliably documented mention of the spherical Earth concept dates
from around the ... Pythagoras (6th century BC) was among those said to have
originated the idea ... "My conviction...
Sep 21, 2011 ... But this doesn't tell you whether the Earth is a flat disc or a round sphere; it only ...
In particular, it said that, on the Summer Solstice, ... for discovering the Earth was
round, and performing the first accurate calculation of its size!
Aug 15, 2006 ... So the person who first discovered that the world was round was ..... Many knew
this for centuries but the catholic church said such talk was ...
Dec 12, 2004 ... Even in ancient times sailors knew that the Earth was round and ... way the ship
disappears from view, you will notice that the hull vanishes first, ...
Mar 31, 2014 ... Christopher Columbus too knew that the Earth was round, when he ... and this
Columbus proposed to do (and he wasn't the first one to suggest ...
Although Aristotle makes some observational arguments for the earth being
round, it seems that Eratosthenes (276-194BC) was the one that figured it out as
Jun 19, 2012 ... The earliest of Greek philosophers to comment on the earth's shape being ... the
first true explanation of how he believed the earth was round.
May 8, 2013 ... They were well aware the Earth was round, having calculated with ... The idea
seems to have first popped up in the 17th century and appears to have ... That
being said, Christian Topography was often cited as support for the ...
Jan 26, 2016 ... This story was originally published on Smarter Than That in 2008. ... Humanity
has known the Earth to be round for a few millenia and I've been meaning ....
Simply said, gravity will pull toward the center of mass of the objects.
Eratosthenes, 200 b.c., within 5%. Addendum: Eratosthenes was the first to
calculate the circumference of the Earth. The idea that it is round is much older.