 ::Trasamundo's command of English is such that it's very, very difficult to read his explanations in detail.  What really strikes me, though, is that they seem to be pretty clearly original research.  Even if I were to read through in close detail and agree with every argument he makes, he is still making original arguments on the basis of primary sources and the synthesis of secondary literature into new forms.  Our map of the Spanish empire ought to be based on historical maps of the Spanish Empire in reliable sources; the maps found in textbooks would probably be our best bet.   