Overview
Gelato is the common word in Italian for all kinds of ice cream. In English, it specifically refers to a frozen dessert of Italian origin. Artisanal gelato in Italy generally contains 6–9% butterfat, which is lower than other styles of frozen dessert. Gelato typically contains 35% air (substantially less than American-style ice cream) and more flavoring than other kinds of frozen desserts, giving it a density and richness that distinguishes it from other ice creams.
Name
In Italian, gelato is the generic word for ice cream and means simply "frozen", independent of the style, so every kind of ice cream is referred to as such. In English, however, the term has come to be used to refer to a specific style of ice cream derived from the Italian artisanal tradition.
History
In the 9th century, after the Muslim conquest of Sicily, frozen dessert like the sherbet are introduced in the island.
From Wikipedia (CC BY-SA 4.0).