We do not come from Latin / Romance Did Not Begin in Rome

A critique of the Latin origin of Romance languages For many years, we have been taught that Romance languages come from Latin. Historical grammar has described this process on the basis of a complicated theoretical framework of successive changes that caused a deep transformation of the parent tongue, which degenerated into the so-called Vulgar Latin. However, as shown in recent research, on a morphosyntactic structure level, linguistic change is a very slow process. Some of the internal changes of a language do not occur over centuries but rather could be traced back over millenia. Why does historical grammar attribute to external influences the evolutionary process from Classical to Vulgar Latin and disregard the fact that it could be caused by the substrate language or languages? Some features of those languages would have survived the Romanization and point to an older common ancestor, an agglutinative and compositional language shared by the various Mediterranean peoples and from which th