The pertinent info from the article:

>Jacopo Tabolli, who coordinated the dig for the University for Foreigners in Siena, said the discovery was significant because it sheds new light on the end of the Etruscan civilization and the expansion of the Roman Empire in today’s central Italy between the 2nd and 1st centuries B.C.

>The period was marked by wars and conflicts across what is today’s Tuscany, Umbria and Lazio regions, and yet, the bronze statues show evidence that Etruscan and Roman families prayed together to deities in the sacred sanctuary of the thermal springs. The statues, including depictions of Apollo and Igea, the ancient Greek god and goddess of health, bear both Etruscan and Latin inscriptions.

>“While there were social and civil wars being fought outside the sanctuary ... inside the sanctuary the great elite Etruscan and Roman families prayed together in a context of peace surrounded by conflict,” Tabolli said. “This possibility to rewrite the relationship and dialectic between the Etruscan and Romans is an exceptional opportunity.”

One reason we know so much about the Romans is that they put inscriptions on everything. And wrote it in stone. Very handy for us 2000 years later. For example, gravestones often had short life stories about the person, even if they were just a small shop owner.