XXII Deiotariana Update 2016-11-27    
Sources          
1 Real-Encyclopädie article Legio by Ritterling p.1791-1797      
2          
3          
4          
5          
History from 58 BC to 284 AD        
Date Action Legionary HQ Modern name Province Comment
47 BC formed by Caesar from two legions of King Deiotarus     Galatia probably not a formal numbered legion
25 legion probably taken over when Galatia became a Roman province and then sent to Egypt Alexandria Alexandria Aegyptus  
by 8/5 certainly a "iusta" (formal numbered)  legion by now        
63 AD Corbulo's Parthian campaigns (vexillation)        
69-70 1st Jewish revolt (vexillation)        
115-117 Jewish revolt in Egypt        
119 last date attested as existing (in Egypt) Alexandria Alexandria Aegyptus  
132-135 possibly destroyed in 2nd Jewish revolt       not mentioned in list from 145