They were better off. Without the discovery of the uses of fire, mankind would not be here. Fire led to the rapid increase of newer, more advanced tech, such as a sword instead of a club.
<span>The correct answer should be The Byzantine Empire flourished. The Byzantine empire adopted Christianity while it was still Roman empire and the religions didn't merge but rather went their own ways, splitting into Orthodoxy and Catholicism, former in the east latter in the west. The Byzantine empire flourished and became one of the strongest powers in the world.</span>
American Law is heavily influenced by British Common Law which was in turn influenced by Roman law, as England was conquered by the Romans and the classical societies were incredibly influential during the Enlightenment.
As a result, latin terms have trickled down over the ages and have remained an integral part of "legalese"