How did Roman rule introduce Latin to Sardinia?

Vulgar Latin was introduced to Sardinia in 238 BCE, following the Roman conquest of the island from Carthage after the First Punic War.1

As Rome established its administration over the territory, the language spread through the integration of the island into the Roman provincial system. Over time, this process led to the development of the Sardinian language, which remains the modern Romance language most similar to the Vulgar Latin spoken during that era. The linguistic evolution of the island was further shaped by the isolation of various tribes, particularly in the central mountains, which preserved archaic features of the Latin introduced during the early stages of Roman rule.1