Which of the following is not part of the legacy left behind by the roman pax romana? a system of approximately 50,000 roads connecting the cities of the roman empire concrete that was used to build aqueducts and buildings italian, the official language of the roman empire; many english words have italian roots roman law, which inspired the civil law we use today

Italian was not the official language of the Roman Empire and therefore is not a legacy, so this would be the incorrect answer. During the Pax Romana, there were many key inventions such as the systems of roads, tunnels and bridges being created all over the empire. Aqueducts were one of the biggest inventions, with some of them still working today. The achievements made in law during that time are still used for Civil Law today.