Archaeologists excavating beneath Notre Dame Cathedral in Paris report finding artifacts they say add to the site’s long history. Multiple reports describe the discovery of a 1,700-year-old Roman coin, along with pottery or other material bearing markings that experts have not yet been able to decipher. The excavation continues as specialists examine the items and work to determine their age and significance. While the coin provides a dated reference to the Roman period, the meaning of the markings remains unclear, with researchers still analyzing their form and possible origins. The reports characterize the findings as evidence of “centuries of buried history” at the cathedral site, but they do not reach conclusions about what the markings represent. Further testing and expert review are ongoing to interpret the artifacts and place them in historical context, according to the outlets covering the excavation.