Long time ago that was what our ancestors believe that's why they fear of sailing to the most farthest corner of Earth in the fear of falling but some brave men like me dared to travel the Earth to its farthest corner and circumnavigate it eventually leading them to believe that the earth is actually in spherical shape.

There is no scientific proof that God exist... of course we all know that scientifically no one can really prove that God exist but we cannot deny the hard to explain creation of life if where it really starts, the creation of galaxies and the void. If we cannot explain it through science we just turn around and say "God made it!".