Travelers from Asia are believed to have brought the art of cheesemaking to Europe. In fact, cheese was made in many parts of the Roman Empire when it was at its height. The Romans, in turn, introduced cheesemaking to England. During the Middle Ages-from the decline of the Roman Empire until the discovery of America-cheese was made and improved by the monks in the monasteries of Europe. For example, Gorgonzola was made in the Po Valley in Italy in 879 A.D., and Italy became the cheesemaking center of Europe during the 10th Century. Roquefort was also mentioned in the ancient records of the monastery at Conques, France as early as 1070.