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This shows that nearly all the cartographers in the renaissance (early 1600s) thought the Earth was a concavity, not a convexity. What happened at this time? The “primitive” man idea is ruled out because Concave Earth Theory (CET) is counter-intuitive. Previous to early 1600 AD only Plato believed that we lived inside a concave Earth (Phædo). The Earth (e.g. water) looks like a flat plane to the horizon and so an uneducated man would presume that the Earth was flat. Mathematicians and astronomers in the Middle Ages presumed the Earth was geocentric convex, thanks largely to the publication of Ptolemy’s Algamast… or so we are told. This latter model is also intuitive, as the heavens look to be rotating around the Earth.
If CET was suddenly discovered by a group of cartographers around 1600 AD, was it discovered through experiment or through a new religion/philosophy? Science was extremely fledgling if non-existent in 1600 AD; although mankind may have been able to have reproduced something akin to the 1897 rectilinear experiment privately. The Rosicrucians for example were rumored to be scientifically far ahead of their time in the 1600s. What new philosophy or religion could have sprung up around 1600 AD to influence cartographers to produce cavity maps? At this time, neither religion nor experiment purporting Earth’s concavity is documented anywhere that I know of, but that is not to say these documents could perhaps exist or that the experiments were either deliberately not documented (private), or the documents have been lost.
Either way, these maps aren’t supposed to exist within the official history of cosmology… yet they do. We are told the cosmological transition is from geocentric convex in the Middle Ages to heliocentric convex in the enlightenment era until today. All ancient world “globe” maps should therefore be convex, yet they are nearly all concave. Something is glaring missing from history.
