in religious icons and even in local recipes. During this period, constant migrations of Greeks fleeing the Slavic invasion of Peloponnese, further strengthened the Hellenic element of the city. The Arabs occupied Reggio in 918 and held some of its inhabitants to ransom or kept them prisoners as slaves. For brief periods in the 10th–11th centuries the city was ruled by the Arabs and, renamed Rivàh (or sometimes Rŷu), became part of the Emirate of Sicily. During the period of Arab rule various beneficial ideas were introduced into Calabria, such as Citrus fruit trees, Mulberry trees (used in silk production) and several ways of cooking local vegetables such as aubergines. The Arabs introduced water ices and ice cream and also greatly improved agricultural and hydraulic techniques for irrigation. In 1005, a Christian fleet coming from Pisa sacked the city and massacred all the Saracens to the great jubilation of the local population. In 1060 the Normans, under Robert Guiscard and Roger I of Sicily, captured Reggio but Greek cultural and religious elements persisted until the 17th century. In 1194 Reggio and the whole of southern Italy went to the Hohenstaufen, who held it until 1266. In 1234 the town fair was established by decree of King Frederick II. From 1266 it was ruled by the Angevins, under whom life in Calabria deteriorated because of their tendency to accumulate wealth in their capital, Naples, leaving Calabria in the power of local barons. In 1282, during the Sicilian Vespers, Reggio rallied in support of Messina and the other oriental Sicily cities because of the shared history, commercial and cultural interests. From 1147 to 1443 and again from 1465 to 1582, Reggio was the capital of the Calabrian Giustizierato. It supported the Aragonese forces against the House of Anjou. In the 14th century it obtained new administrative powers. In 1459, the Aragonese enlarged its medieval castle. Reggio, throughout the Middle Ages, was first an important centre of calligraphy and then of printing after its invention. It boasts the first dated, printed edition of a Hebrew text, a Rashi commentary on the Pentateuch, printed in 1475 in La Giudecca of Reggio, even though scholars consider Rome as the city where Hebrew printing began. The Jewish community of Reggio was also considered to be among the foremost internationally, for the dyeing and the trading of silk: silk woven in Reggio was esteemed and bought by