Where was Latin originally spoken before the expansion of Rome?

Before the expansion of Rome, Latin was the language of Latium, an area in west-central Italy. Originally, the Latins were settled on the Alban Hills, a location that was isolated and easy to defend.123

By the first centuries of the 1st millennium BCE, the Latins had developed as a distinct people within this region, which was bounded by the Tiber River to the north, the Etruscan region to the northwest, and the territories of various Italic tribes—such as the Sabini, Aequi, and Marsi—to the east and northeast. The language was part of a broader group of Latinian dialects, which included Faliscan, spoken by tribes living north of Latium.345