““Nineteen teeth from twelve sixth-century plague pits in Aschheim near Munich provided the source of the Code of Justinian. In among the ancient human DNA are the remnants of other species that loiter around our bodies. A 2013 study ground out DNA from those teeth and found without doubt the same Yersinia pestis we see today. This had settled a long running debate about whether that great plague was in fact bubonic.””
