Nora, an ancient town in Sardinia, boasts a rich tapestry of history dating back to its founding by the Nuragic people. It flourished under the Phoenicians as a trade hub and later under Roman rule, becoming a municipium with advanced infrastructure. Today, Nora's ruins, including underwater mosaics visible through snorkeling tours, offer a glimpse into the diverse cultures that shaped the Mediterranean. The site's significance is further highlighted by the Stele di Nora, the oldest known document mentioning Sardinia, housed in Cagliari's National Archaeological Museum.