EditorialAn excavated staircase dating to the Julio-Claudian era, already built by Caligula’s reign, in Rome, Dec. 9, 2020. (Nadia Shira Cohen/The New York Times)
EditorialAn excavated staircase dating to the Julio-Claudian era, already built by Caligula’s reign, in Rome, Dec. 9, 2020. (Nadia Shira Cohen/The New York Times)