The development of nationalism during the past century and a half is increasingly recognized as one of the major phenomena calling for careful study by historians. To comprehend all the implications of this growth, the interrelations of the political, cultural and, in particular, linguistic forms of nationalism must be investigated. This is especially necessary in the case of separatist movements—the efforts of subject peoples to achieve political independence. The motives and aims of cultural and political nationalism are not always identical. The two may exist together or apart; they may develop coevally or one may precede the other. In parts of Switzerland and to some extent in Wales, cultural and linguistic distinctness and homogeneity endure without political separation. When separatist forces, both political and cultural, develop coincidentally, the question arises as to the relative strength of the two factors. In the case of the modern Irish state, now scarcely twenty years old, a common culture existed long before political statehood established itself. It was partly because of the reëmphasis early in this century upon Ireland's ancient civilization, a civilization which included a different language, that sympathy for her political aspirations was aroused. Ireland's consciousness of her Gaelic past, her golden age, survived six centuries of assault when she was deprived of political power. In the knowledge of distinctive speech of her own, in the remembrance of cultural preeminence during Europe's Dark Ages, and in the possession of tangible relics, the Irish people kept alive their sense of unity after repeated rebellions failed.