Of the many unforeseen consequences of typography, the emergence of nationalism is, perhaps, the most familiar. Political unification of populations by means of vernacular and language groupings was unthinkable before printing turned each vernacular into an extensive mass medium. The tribe, an extended form of a family of blood relatives, is exploded by print, and is replaced by an association of men heterogeneously trained to be individuals. Nationalism itself came as an intense new visual image of group destiny and status, and depended on a speed of information movement unknown before printing. Today nationalism as an image still depends on the press but has all the electric media against it. In business, as in politics, the effect of even jet-plane speeds is to render the older national groupings of social organization quite unworkable.
— McLuhan, Marshall. Understanding Media: The Extensions of Man. New York: Routledge Classics, 1964. 2006.
