leadership of Germany, France liberated North Italy from Austria at the price of Savoy, and Italy gradually unified itself into one kingdom. Then Napoleon III was so ill advised as to attempt adventures in Mexico, during the American Civil War; he set up an Emperor Maximilian there and abandoned him hastily to his fate—he was shot by the Mexicans—when the victorious Federal Government showed its teeth.
In 1870 came a long-pending struggle for predominance in Europe between France and Prussia. Prussia had long foreseen and prepared for this struggle, and France was rotten with financial corruption. Her defeat was swift and dramatic. The Germans invaded France in August, one great French army under the Emperor capitulated at Sedan in September, another surrendered in October at Metz, and in January