States conquered by Rome? And the results of their conquest?

Rome, over the years of its existence, conquered such states and lands: Gaul, Spain, North Africa, Egypt, Panonia, Thrace, Illyria, Macedonia, Greece, Palestine, Asia Minor, Syria, etc. The result of this conquest was the transformation of Rome into a huge and very rich empire. Such large territories provided a huge influx of gold and slaves. So Rome was able to become the richest and most luxurious city in the world.