All "flat" maps are projections of a sphere, as was known from their origination. The Mercator projection, with which we are all familiar, was first presented in 1569. It is more accurate to say that the projection unwrapped the Earth surface from a ball to a plane.
All "flat" maps are projections of a sphere, as was known from their origination. The Mercator projection, with which we are all familiar, was first presented in 1569. It is more accurate to say that the projection unwrapped the Earth surface from a ball to a plane.