The monks have a tradition that the gospel was first preached in Paris about the year 250, by St. Denis, and that he suffered martyrdom at Montmartre. A chapel was early erected on the spot now occupied by Notre Dame. In 406 the northern barbarians made a descent upon the Roman provinces, and in 445 Paris was stormed by them. Before the year 500 Paris was independent of the Roman domination. Clovis was its master, and marrying Clotilde, he embraced Christianity and erected a church. The island was now surrounded by walls and had gates. The famous church of St. German L'Auxerrois was built at this time. For two hundred and fifty years, Paris retrograded rather than advanced in civilization, and the refinements introduced by the Romans were nearly forgotten. In 845 the Normans sacked and burnt Paris. Still again it was besieged, but such was the valor of its inhabitants that the enemy were glad to raise the siege. Hugues Capet was elected king in 987, and the crown became hereditary. In his reign the Palace of Justice was commenced. Buildings were erected on all sides, and new streets were opened. Under Louis le Gros the Louvre was rebuilt, it having existed since the time of Dagobert. Bishop Sully began the foundations of Notre Dame in 1163, and about that time the Knights Templars erected a palace. Under the reign of Philip Augustus many of the public edifices were embellished and new churches and towers were built. In 1250 Robert Serbon founded schools--a hospital and school of surgery were also about this time commenced. Under Charles V. the city flourished finely, and the Bastille and the Palace de Tourvelles were erected. The Louvre also was repaired. Next came the unhappy reign of Charles VI., who was struck with insanity. In 1421 the English occupied Paris, but under Charles VII. they were driven from it and the Greek language was taught for the first time in the University of Paris. It had then twenty-five thousand students. Under the reign of successive monarchs Paris was, from famine and plague, so depopulated that its gates were thrown open to the malefactors of all countries. In 1470 the art of printing was introduced into the city and a post-office was established. In the reign of Francis I. the arts and literature sprang into a new life. The heavy buildings called the Louvre were demolished, and a new palace commenced upon the old site. In 1533 the Hotel de Ville was begun, and many fine buildings were erected. The wars of the sects, or rather religions, followed, and among them occurred the terrible St. Bartholomew massacre. Henry IV. brought peace to the kingdom and added greatly to the beauty and attractiveness of Paris.