SUCH a “settlement” could not endure. The wars and rebellions of the nineteenth and twentieth centuries were attempts to unmake its articles or to repair its omissions. The revolutionary outbreaks of 1848, the Hungarian war of independence of 1849, the Polish insurrection of 1863, the Crimean war [of 1853-56], the Franco-Austrian war of 1859, the war between the Germanic Powers and Denmark in 1864, and that between those Powers themselves two years later, the Franco-Prussian war, the wars between Russia and Turkey and Greece and Turkey, and those of Serbia, Greece, and Bulgaria against their Ottoman enemy and one another, from which this last and greatest war of all has developed, — these are episodes in the struggle to attain, or to repress, national aspirations after unity or freedom, or both.