Was the Roman Republic a success or failure?

The Roman Empire conquered the entirety of the Mediterranean, the Illyrian Peninsula, Asia Minor, Greece, the Iberian Peninsula, North Africa, the greater portion of Europe, Mesopotamia, Armenia, Thrace, Egypt, the Holy Land, and half of Britain at its height in the early second century AD. read more

The Roman Republic conquered most of what later became the Roman Empire. The Roman Republic provided the constitutional benefits of separation of powers, free elections, power limitation, checks and balances, multiple power sources, and provisions to prevent and discourage monarchy and dictatorship. The Roman Republic was a victim of its own success. read more

It was a very successful city-state, in that it spawned an empire. It doomed itself when it decided to make some of its conquests into provinces appointed from Rome without regard for the people living there. read more