Underwater archaeologists have recovered a Bronze Age sword from Lake Mezzano, a volcanic crater lake about 60 miles northwest of Rome, and its blade is still sharp, according to Italy's Superintendence of Archaeology, Fine Arts and Landscape for the Province of Viterbo and Southern Etruria, as reported by Gizmodo and Vice. The team, working with the Carabinieri underwater unit of Rome, dates it to the 13th century BCE.

Divers also brought up axes, arrowheads, daggers, spearheads, pins, a bronze razor and intact ceramic vases. It is the third sword found at the lake since the 1970s. The superintendency says a pile-dwelling (stilt) settlement very likely stood there in the Bronze Age. Why the sword ended up in the water isn't known; Vice reports two theories: it belonged to a high-status person (it lay beside the razor), or it was a ritual offering to water deities.