Giovanni Maria Cassini (1745 – 1824), a disciple of Giovanni Battista Piranesi, was a geographer, cartographer, and engraver working in Rome for decades between the late 18th and early 19th centuries. He invented a new method of projection, called Cassini, famously used for the geographical atlas of the kingdom of Naples in 32 sheets signed by Giovanni Antonio Rizzi Zannoni.


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