Final answer:
Julius Caesar expanded the Roman Empire by successfully conquering Gaul, which is a true statement. This conquest was marked by significant military achievements, cultural Romanization, and integration of the Gauls into the Roman elite and society.
Step-by-step explanation:
The assertion that Julius Caesar added territory to the Roman Empire in Gaul is indeed true. Between 58 to 50 BCE, Caesar led a series of military campaigns, known as the Gallic Wars, against the regional tribes in Gaul, which is present-day France and surrounding areas.
The conquest of Gaul was significant, not only in terms of territorial expansion but also in the sociopolitical changes it brought to the region.
According to the historical records, including those by Caesar himself, these wars resulted in the subjugation of over 400 tribes, the capture and enslavement of a large number of the Gallic population, and the incorporation of the territory into the Roman Empire. This marked a substantial growth in the empire's extent and influence.
Additionally, the conquest of Gaul facilitated a cultural assimilation known as Romanization, where the local elites and the Roman military contributed to a fusion of Gallic and Roman cultures.
Evidence of this cultural integration is observed in the architecture and urban planning, as Roman features like roads, villas, and urban spaces became prevalent.
Even the local Gauls gained significance in Roman society, with some becoming Roman citizens and even senators.