Fascinating story. As terrifying as covid-19 has been (especially in the beginning), it's hard to even fathom what it must have been like to have no medical treatment at all and no real understanding of disease transmission. One question I had is did the citizens of Seleucia know what was happening when they threw open their gates? I also wondered if this was a disease that had already ravaged this town and, if not, how they knew Seleucia was the source? Thanks for an interesting read.