Expansion of the Roman Empire led to increased trade but also unemployment as Roman farmers struggled to compete with imports. After most farmers lost their jobs, they moved to cities looking for work but found few opportunities due to competition from slaves. The Punic Wars further aided expansion as Rome gained territory. Rome is located in central Italy and built on seven hills surrounded by mountains. Most Romans lived in overcrowded, run-down apartment buildings with rents increasing with each additional floor climbed. The First Punic War began in 264 BCE between Rome and Carthage in Sicily, where Rome prevailed despite its lack of a strong navy. Christianity eventually became the dominant religion in Rome. It attracted qualified leaders who helped address