 The most notable among them is the Baška tablet, one of the oldest surviving inscriptions in the Croatian language.The region continued to be contested throughout the High Middle Ages as the Republic of Venice started to expand its influence and territory, gradually pushing back Croatia, which had been in a personal union of Croatia and Hungary since 1102.By 1420, Venice controlled Istria and Dalmatia, as well as all the Kvarner Gulf islands except Krk.