You just made a complete fool of yourself.
The 3000 year old people didn't prove it was a globe and it is still not proven.
Get some actual measurement. of the curve….doesn't exist….it should if you have any knowledge of simple geometry.
So you say they absolutely proved the globe and yet still scientists were discussing it early 1900's
History,Science,Space,Religion all tools of perception.
Start thinking for yourself, you'll get there you are waking up according to your post….welcome
Pythagoras said the earth was round because the moon was, later wasn't sure but story's do put him down as someone who proved it.
As so for the others, if you want to debunk please bring actual measurable facts.
Never happend , no such measurement exists, should be easy with Pythagoras math……(keep thinking it's to big, it's not….that's why it can't be a sphere) a straight line (horizon)will never become a circle. simple as that!