Nov 308Diocletian andGalerius makeLicinius an Augustus
309Shah killed in warwith Ghassanids
310Maxentiusretakes Africa
310?–325Arab tribes raidPersian Empire
?? 310?–Dec 328Lakhmids ruleKingdom ofAll Arabs
May 311Galerius dies
28 Oct 312Constantine defeatsMaxentius atMilvian Bridge