A 1,500-year old mosaic tile floor bearing a clear inscription was uncovered in Jerusalem's Old City by a crew of workers installing cables in August 2017. The mosaic, which was dated to the year 550 C.E., cites 6th-century Roman emperor Justinian as well as Constantine. The full inscription reads:
The most pious Roman emperor Flavius Justinian and the most God-loving priest and abbot, Constantine, erected the building in which (this mosaic) sat during the 14th indiction. Officials with the Israeli Antiquities Authority said the fact that the mosaic had survived completely in-tact so long was an archaeological miracle.
Israeli archaeologists uncover rare 1,500-year-old mosaic, Reuters, (August 24, 2017).