To document Rome's rise from a small settlement on the Tiber to a world power, research relies on a combination of archaeological finds and literary sources. Archaeologically, postholes from huts on the Palatine Hill, as well as geoarchaeological studies of early port facilities and drainage systems like the Cloaca Maxima, serve as evidence for early settlement and urban development. Literary sources include the works of ancient historians such as Cassius Dio, Livy, and Mary Beard, which, although often written centuries later, provide important insights into myths, political institutions, and the social organization of the early period.