When a new region was assimilated into the Roman Empire, the continuance of preexisting local currencies was often allowed as a matter of expediency.
Provincial coins were issued in silver, billon and bronze denominations, though never gold.
By 210 BC Rome was controlling all of the Greek cities in the region of Magna Graecia.
At the beginning of the next century a clear Roman influence on the Greek coinage can be noticed.
Greek coinage from this period can be classified as the first instances of Roman provincial currency.