From Popular Mechanics:
An 1,800-year-old silver amulet discovered buried in a Frankfurt, Germany grave, still next to the chin of the man who wore it, has 18 lines of text written in Latin on just 1.37 inches of silver foil. That could be enough to rewrite the known history of Christianity in the Roman Empire.
The amulet—and the inscription—are the oldest evidence of Christianity found north of the Alps. “Using the CT, we were able to scan it in a very high resolution and create a 3D model.” The virtual object was then scanned piece by piece, slowly revealing the words, allowing experts to finally get a look at the inscribed text on the individual fragments from the scan. Some edges were lost due to damage and some words remain open to discussion. The original inscription is entirely in Latin, unusual for a time that featured amulets written in Greek or Hebrew.