Eratosthene measured the earth diameter somewhere around 200BC https://en.wikipedia.org/wiki/Eratosthenes#Measurement_of_the_Earth's_circumference A better question to ask is when circular earth became dominant belief. That, I am not aware of good documentation. That said, Columbus knew the earth to be round so it wasn't super obscure knowledge. NASA has a short history here: https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question54.html On 26/01/2018 11:33 AM, Steffen Nurpmeso wrote:
John Haxby <john.haxby@oracle.com> wrote: |> On 26 Jan 2018, at 07:35, Paul Eggert <eggert@cs.ucla.edu> wrote: |> On 01/24/2018 10:33 PM, Clive D.W. Feather wrote: |>> Robert Elz said: |>> |>>> Once upon a time, the world was always flat, everyone knew that, |>>> the pope even proclaimed it... |>>> |>> Cite? | |A spherical earth pre-dates a Pope by quite a few centuries. One of \ |the better known Greeks (whose name escapes me) even estimated the \ |diameter of the earth. A flat earth is a relatively new fad.
Now i am anything but a christian, yet i would support the philosophical reasoning.
|> I doubt whether any Roman Catholic pope proclaimed the Earth flat \ |> as a matter of doctrine. That being said, flat-Earthers are still \
-- Oracle Email Signature Logo Patrice Scattolin | Software Development Manager | 514.905.8744 Oracle Cloud 600 Blvd de Maisonneuve West Suite 1900 Montreal, Quebec
