of reference for writers and poets. This language is less spoken by the younger generations in the city, who use Italian instead as that language is compulsory in education and the mass media. Italian has increasingly become predominant in social relations, both formal and informal, relegating Sardinian to a mostly marginal role in everyday life. Young people often have only passive competence in the language, gathered from elderly relatives who still speak it, as their parents often speak only Italian, or they may use a slang (italianu porceddinu) that mixes both Sardinian and Italian. Since Cagliari was the metropolis of the ancient Roman province, it absorbed innovations coming from Rome, Carthage, and Constantinople, and its language probably reflected late Latin urban dialects of the 5th-century core cities of the empire. Gastronomy Cagliari has some unique gastronomic traditions: unlike the rest of the island its cuisine is mostly based on the wide variety of locally available seafood. Although it is possible to trace influences from Catalan, Sicilian and Genoese cuisine, Cagliaritan food has a distinctive and unique character. Excellent wines are also part of Cagliaritanians' dinners, like the Cannonau, Nuragus, Nasco, Monica, Moscau, Girò and Malvasia, produced in the nearby vineyards of the Campidano plain. Media The main newspaper of Sardinia is L'Unione Sarda, it was founded in Cagliari in 1889. It was one of the first European newspapers to have its own website in 1994. It has a circulation of about 85,000 copies. The main regional headquarters of RAI, the Italian state-owned radio and television network, is in Cagliari. There are also two regional television and radio companies as well as numerous information sites on the internet. Sports Cagliari is home to the football team Cagliari Calcio, winner of the Italian league championship in 1970, when the team was led by Gigi Riva. Founded in 1920, the club played at the Stadio Sant'Elia in the city from 1970 until it was closed in the summer of 2017, causing the club to temporarily relocate to the provisional Sardegna Arena. Sant'Elia was the venue for three 1990 FIFA World Cup matches. Cagliari is an ideal location for water sports such as surfing, kitesurfing, windsurfing and sailing due to strong and reliable favourable winds. Field hockey is also popular, with two teams in the Italian top division, G.S. Amsicora and C.U.S. Cagliari, the first of which won the league title more often than