Author: Phil Cohen
Phil Cohen , June 29th, 2020
One of the most important moments in the development of cartography occurred when an obscure doctor, John Snow, produced his so-called ghost map of the cholera outbreak in…
Phil Cohen , June 29th, 2020
One of the most important moments in the development of cartography occurred when an obscure doctor, John Snow, produced his so-called ghost map of the cholera outbreak in…