217
ID: 3850
St. Callixtus I becomes sixteenth pope - former slave, creates famous catacombs, emphasizes divine mercy
ID: 3850
217
ID: 4041
Caracalla assassinated - killed while urinating on campaign, Praetorian Prefect Macrinus takes power
ID: 4041
217
ID: 4671
Battle of Nisibis - Parthians defeat Macrinus, Rome pays huge indemnity
ID: 4671