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 said that he had never known what it was to be grateful, except to the horse that carried him out of fire at Molwitz. That humiliation taught Frederic to remodel and increase his cavalry, and he afterwards owed to it much of his success. Nobody again advised him to ride out of the way of danger. He was soon known and dreaded as an invariable victor, and Maria Theresa ended the war by surrendering the contested province. Frederic concluded a treaty of alliance with France, which was to last fifteen years, and did last until, in 1756, Kaunitz effected the great change in the attitude of European Powers.

On the extinction of the Habsburg dynasty of emperors, the Bavarian House of Wittelsbach claimed the succession; and the French, supported by Frederic, traversed Germany and invaded Bohemia. Maria Theresa was loyally defended by Hungary in both the Silesian wars, and maintained her right, without recovering the country she had lost. She was ineffectively supported by England against the superiority of French arms in the Netherlands. That good understanding now came to an end.

The Seven Years' War, otherwise called the Third Silesian War, because it finally settled the question whether Silesia should be Austrian or Prussian, though it involved almost every European Power, was an episode in a far larger controversy. French and English were at peace in the old world, but a feud had broken out in the backwoods of the new, where their strife was for the grandest prize ever disputed by man, dominion over America from the Atlantic ultimately to the Golden Gates of the Pacific, and for the future of the world. The French were masters of the lake region and the St. Lawrence, and also of the Mississippi basin. They claimed the intervening country by right of discovery, and they began, in 1748, to establish an effective occupation of the valley of the Ohio. The English might retain the Atlantic fringe; the French would possess the hinterland from Louisbourg to New Orleans. They planted a chain of posts, choosing the place for them with superb intuition. One is now Detroit, another Chicago. And under the