The fourteenth and fifteenth centuries witnessed the decline of the romanticists, the loss of most of the Southern culture, and all the literature of this time is at a low ebb, partly owing to the wars of the Germans against the Huns. The fourteenth century was productive of one class of literature that was common to all Europe; namely, simple and humorous fables and satires. "Reynard the Fox" was one of the earliest of these fables, and remained a great favorite with the Germans, being finally immortalized by Goethe. The same author has made us familiar with a personage who figures in an interesting legend of the fifteenth century. Doctor Faust, or Faustus, is a magician who by unlawful arts gains a mastery over nature. This legend became the foundation of a number of stories and dramas, and was put into verse by Christopher Marlowe, the English dramatist. The end of the sixteenth century saw a craze for Latin in Germany. The national tongue was neglected and national poetry was translated into Latin verse. German poets wrote in the same classic language, and the university lectures were all delivered in the same tongue. The seventeenth century saw the Thirty Years' War, during which all literary activity was completely paralyzed, and in the course of these thirty years a whole generation, especially among the lower classes, had grown up unable either to read or write. But after the Treaty of Westphalia matters began to improve, and a desire to cultivate the native language awoke. In 1688 German superseded Latin in the universities. Novels were published; and about this time appeared a German translation of Defoe's "Robinson Crusoe" that became very popular. Poets wrote plays in the style of Terence, or copied English models; and even in the present day the Germans recall with pride the fact that the Shakespearean plays were appreciated by them during and after the Elizabethan age much more than they were by the English Nation. Science under Leibnitz also began to take shape in this century, while Opitz wrote operas in imitation of the Italian style; and translations from the Italian Marini came into vogue. In the eighteenth century arose the Saxonic and Swiss schools of literature, neither of which was devoted to national works. Gottsched, the founder and imitator of French standards in art and poetry, is known as the leader in the Saxonic school at Leipsic, and an advocate of classical poetry.