Numerous are the works that the author, National History Award 2008, has dedicated to the nineteenth century, to the economy-society relationship and to the liberalism of the time. In this new version of his studies, revisits the aforementioned century and also rethinks about the use and abuse of the concatenated liberal, liberals and liberalism concepts. Likewise, he ventures more directly and critically into what is said to be current liberalism, "a liberalism not only distorted with respect to the origins of the concept but, moreover, without historical memory. Today, anyone, and everyone, they call themselves liberals and lash out at their own past without knowing it again. "