The importance of the Etruscans can be traced back to Rome. The Roman Republic, and later the Roman Empire, was an unusual conqueror because it would absorb and assimilate elements of the cultures it dominated. A standing practice was to allow the defeated to continue practicing their culture and religion so long as they paid their taxes on time. Such a procedure was part of why Christianity would seep into the Roman Empire around the 1st century CE, for example.