an Entity references as follows:
Italian literature is written in the Italian language, particularly within Italy. It may also refer to literature written by Italians or in other languages spoken in Italy, often languages that are closely related to modern Italian, including regional varieties and vernacular dialects. Italian literature begins in the 12th century, when in different regions of the peninsula the Italian vernacular started to be used in a literary manner. The Ritmo laurenziano is the first extant document of Italian literature.