REIGNED.
_Years._ B.C. A.D.
=Augustus= 40 27-14
A.D.
=Tiberius= 23 14-37
=Caligula= 4 37-41
=Claudius= 13 41-54
=Nero= 14 54-68
=Galba= 68-69
=Otho= 69
=Vitellius= 69
=Vespasian= 10 69-79
=Titus= 2 79-81
=Domitian= 15 81-96
=Nerva= 2 96-98
=Trajan= 19 98-117
=Hadrian= 21 117-138
=Antoninus Pius= 23 138-161
{ =M. Aurelius= 19 161-180
{ =L. Verus= 8 161-169
=Commodus= 12 180-192
=Pertinax= 193
=Julianus= 193
=Niger= 194
=Septimius Severus= 18 193-211
=Albinus= 4 193-197
{ =Caracalla= 6 211-217
{ =Geta= 1 211-212
=Macrinus= 1 217-218
=Elagabalus= 4 218-222
=Alexander Severus= 13 222-235
=Uranius= 223
=Maximinus= 3 235-238
{ =Gordianus I.= } 238
{ =Gordianus II.= }
{ =Pupienus Maximus= } 238
{ =Balbinus= }
=Gordianus III.= 6 238-244
=Philippus= 5 244-249
=Marinus= 249
=Jotapinus= 249
=Decius= 2 249-251
=Trebonianus Gallus= 3 251-254
=Æmilianus= 253
=Volusianus= 254
{ =Valerian= 7 253-260
{ =Gallienus= 15 253-268
=Macrianus= 2 260-262
=Regillianus= 2 261-263
=Postumus= 9 258-267
=Lælianus= 267
=Victorinus= 2 265-267
=Marius= 268
=Claudius II.= 2 268-270
=Quintillus= 270
=Aurelian= 5 270-275
=Vabalathus= 5 266-271
=Tetricus= 5 268-273
=Tacitus= 1 275-276
=Florianus= 276
=Probus= 6 276-282
=Bonosus= 280
=Carus= 1 282-283
{ =Carinus= } 1 283-284
{ =Numerianus= }
=Julianus= 284
{ =Diocletian= 21 284-305
{ =Maximianus= 19 286-305
=Carausius= 6 287-293
=Allectus= 4 293-297
=Constantius I. Chlorus= 1 305-306
=Galerius= 6 305-311
=Severus= 1 306-307
=Maximinus= 5 308-313
=Maxentius= 6 306-312
=Alexander= 311
=Constantinus I. (the Great)= 31 306-337
=Licinius= 16 307-323
{ =Constantinus II.= 3 337-340
{ =Constantius II.= 24 337-361
{ =Constans I.= 13 337-350
=Nepotianus= 350
=Vetranio= 1 350-351
=Magnentius= 3 350-353
=Decentius= 2 351-353
=Constantius Gallus= 3 351-354
=Julianus II.= 2 361-363
=Jovianus= 1 363-364