? May–9 Jun 193Severus invades Italy,overthrowingDidius Julianus
1 Jun 193–4 Feb 211Septimius Severusrules Roman Empire
193–194Bosporan Kingdomdestroys Siraces andScythian Kingdom
193Clodius Albinusaligns withSeptimius Severus
193–195Byzantium fallsto Severan forcesafter long siege
Jan 194Severus defeatsNiger at Nicaea
31 Mar 194Severus decisivelydefeats Niger at Issus