Julius Caesar: Why Did The Republic Start?

The young Julius Caesar was born in the marvelous city of Rome July 13, 100 B.C. The young boy was born in a time of turmoil where the pre-existing republic became outdated by the new imperialistic view. But why did this happen? What caused it? Where did the republic begin? The first accounts of the Romans and their republic was in 754 B.C. The first great city was found along the Tiber River. From this city, Rome would grow to subdue all of present day Italy. But, along the way to glory they would face great tribulations from the fierce Carthaginian Empire. After many wars with the Carthaginians, the more militarized Rome would come on top. They defeated the Carthaginians and this allowed their empire to spread over the whole of the Mediterranean.