That's what the Romanian nationalists would like you to think, but Daco-Roman continuity as the Vlachs is only one of the competing theories about the origin of the people eventually called Romanians. There are several others, including a slower cultural influence, from the south (for many think it to be unlikely that a hundred years of Roman occupation in Dacia would have created a sufficient basis for a Latin-speaking population that would survive for centuries longer despite innumerable migrations by non-Latin-speaking peoples), and the migration of Thraco-Romans northward during the Völkerwanderung.It is, for how the Romans integrated themselves in with the Dacians.