Grimm, inspired by Herder's writings, put together an idealized collection of tales, which they labeled as authentically German. The concept of an inherited cultural patrimony from a common origin rapidly became central to a divisive question within romantic nationalism: specifically, is a nation unified because it comes from the same genetic source, that is because of race, or is the participation in the organic nature of the "folk" culture self-fulfilling? Romantic nationalism formed a key strand in the philosophy of Hegel (1770–1831), who argued that there was a "spirit of the age" or zeitgeist that inhabited a particular people at a particular time. When this group of people became the active determiner of history, it was simply because their cultural and political moment had come. Because of the Germans' role in the Protestant Reformation, Hegel (a Lutheran) argued that his historical moment had seen the Zeitgeist settle on the German-speaking peoples. In continental Europe, Romantics had embraced the French Revolution in its beginnings, then found themselves fighting the counter-Revolution in the trans-national Imperial system of Napoleon. The sense of self-determination and national consciousness that had enabled revolutionary forces to defeat aristocratic regimes in battle became rallying points for resistance against the French Empire (1804–14). In Prussia, the development of spiritual renewal as a means to engage in the struggle against Napoleon was argued by, among others, Johann Gottlieb Fichte (1762–1814), a disciple of Kant. The word Volkstum, or "folkhood", was coined in Germany as part of this resistance to French hegemony. Fichte expressed the unity of language and nation in his thirteenth address "To the German Nation" in 1806: The first, original, and truly natural boundaries of states are beyond doubt their internal boundaries. Those who speak the same language are joined to each other by a multitude of invisible bonds by nature herself, long before any human art begins; they understand each other and have the power of continuing to make themselves understood more and more clearly; they belong together and are by nature one and an inseparable whole. (Kelly, 1968, pp. 190–91) Only when each people, left to itself, develops and forms itself in accordance with its own peculiar quality, and only when in every people each individual develops himself in accordance with that common quality, as well as in accordance with his own peculiar quality-then, and then only, does the manifestation of divinity appear in its true