Among the earliest authoritative studies, the Political Essay on the Kingdom of New Spain, published in 1811, is sketchy about a number of things, but is adamant about what?

The Political Essay on the Kingdom of New Spain, while sketchy regarding some things, is clear that there are a number of possible routes to connect the Pacific Ocean and the Gulf of Mexico through Central America. But the various professionals and experts need to be gathered to seek out the best route to select and approach.