Austrian linguistic map from 1896. In green the areas where Slavs were the majority of the population, in orange the areas where Istrian Italians and Dalmatian Italians were the majority of the population. The boundaries of Venetian Dalmatia in 1797 are delimited with blue dots.
Italian irredentism in Dalmatia was the political movement supporting the unification to Italy, during the 19th and 20th centuries, of Adriatic Dalmatia.