During the Roman Age, named Tibur, it gained a certain importance, also being on the way that Romans had to follow to the mountain regions on the Apennines[?].
It became a residential area and was enriched by Roman villas like Villa Adriana[?] (Hadrian's Villa).
It is the most important center for the production of Travertine, a particular white calcium carbonate rock which most of Roman monuments were made of.
... century - 15th century - 16th century
Decades: 1420s 1430s 1440s 1450s 1460s - 1470s - 1480s 1490s 1500s 1510s 1520s
Years: 1473 1474 1475 1476 1477 - 1478 - ...
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