#The round Earth.<ref>http://famous-mathematicians.org/pythagoras/</ref> (though this actually originated with Isaiah of Judah<ref>Isaiah 40:22</ref> 100 years earlier.<ref>The book of Job in chapter 26 verse 10 also describes the Earth as round describing its terminator (line where day and night "meet") as a circle, which would only be true 100 percent of the time on a perfect (or close enough to perfect) sphere. However, the Bible gives almost no clue as to when Job was written.</ref>