Sardinia the highest internet performances, such as fastest broadband connection in Italy. Sardinia is also the Italian region with the highest percentage (41%) of 4G LTE users. The Chinese multinational telecommunications equipment and systems companies ZTE and Huawei have development centers and innovation labs in Sardinia. Sardinia has become Europe's first region to fully adopt the new Digital Terrestrial Television broadcasting standard. From 1 November 2008 TV channels are broadcast only in digital. Sardinia has three international airports (Alghero-Fertilia/Riviera del Corallo Airport, Olbia-Costa Smeralda Airport and Cagliari-Elmas Airport) connected with the principal Italian cities and many European destinations, mainly in the
Sardinia occupied the territory. The Giudicato of Arborea, having Oristano as its capital, had the longest life compared to the other kingdoms. Its later history is entwined with the attempt to unify the island into a single Sardinian state ("Republica sardisca" "Sardinian Republic" in Sardinian, "Nació sarda" or "sardesca" "Sardinian Nation" in Catalan) against their relatives and former Aragonese allies. In 1297, Pope Boniface VIII established on his own initiative ("motu proprio") a hypothetical "regnum Sardiniae et Corsicae" ("Kingdom of Sardinia and Corsica") in order to settle the War of the Sicilian Vespers diplomatically. This had broken out in 1282 between