The table below contains a chronology of every Legion known by record during the Roman Empire, before the restructuring of the Roman army by Emperor Diocletian Augustus. Two notations concerning the fates of several legions can be found at the bottom.
| Legion Title | Date Comissioned | Date Terminated | Method of Termination |
| I Adiutrix | 68 AD | 444 AD | Disbanded |
| I Germanica | BC 48 | 70 AD | Dishonourably Disbanded for Cowardice |
| I Italica | 66 AD | after 400 AD | Disbanded |
| I Macriana | 68 AD | 69 AD | Dishonourbaly Disbanded for Mutiny |
| I Minervia | 82 AD | after 300 AD | Disbanded |
| I Parthica | 197 AD | after 400 AD | Disbanded |
| II Adiutrix | 70 AD | about 269 AD | Disbanded |
| II Augusta | before BC 9 | after300 AD | Disbanded |
| II Italica | 165 AD | after 400 AD | Disbanded |
| II Parthica | 197 AD | after 350 AD | Disbanded |
| II Traiana | 105 AD | after 400 AD | Disbanded |
| III Augusta | BC 43 | after 350 AD | Disbanded |
| III Cyrenaica | BC 36 | after 400 AD | Disbanded |
| III Gallica | BC 49 | after 300 AD | Disbanded |
| III Italica | 165 AD | after 300 AD | Disbanded |
| III Parthica | 197 AD | after 400 AD | Disbanded |
| IV Flavia Felix | 70 AD | before 400 AD | Disbanded |
| IV Macedonica | BC 48 | 70 AD | Dishonourably Disbanded for Unknown Reason |
| IV Scythica | BC 42 | after 400 AD | Disbanded |
| V Alaudae | BC 52 | 87 AD | Destroyed during First Dacian Campaign |
| V Macedonica | BC 43 | after 500 AD | Disbanded |
| VI Ferrata | BC 58 | 261 AD* | Fate Unknown* |
| VI Hispana | about 212 AD | about 250 AD* | Fate Unknown* |
| VI Victrix | BC 41 | after 400 AD | Disbanded |
| VII Claudia | BC 58 | about 400 AD | Disbanded |
| VII Gemina | 68 AD | about 400 AD | Disbanded |
| VIII Augusta | BC 59 | about 371 AD | Disbanded |
| IX Hispana | BC 41 | 132/161 AD** | Destroyed** |
| X Fretensis | BC 40 | after 400 AD | Disbanded |
| X Gemina | BC 42 | after 400 AD | Disbanded |
| XI Claudia | BC 42 | after 400 AD | Disbanded |
| XII Fulminata | BC 43 | after 400 AD | Disbanded |
| XIII Gemina | BC 57 | after 400 AD | Disbanded |
| XIV Gemina | BC 41 | after 400 AD | Disbanded |
| XV Apollinaris | BC 41 | after 400 AD | Disbanded |
| XV Primigenia | 39 AD | 70 AD | Destroyed in Bataavi Revolt |
| XVI Flavia Firma | 70 AD | after 300 AD | Disbanded |
| XVI Gallica | BC 41 | 70 AD | Dishonourably Disbanded for Cowardice |
| Legio XVII | BC 41 | 9 AD | Annihilated in Teutoberger Wald |
| Legio XVIII | BC 41 | 9 AD | Annihilated in Teutoberger Wald |
| Legio XIX | BC 41 | 9 AD | Annihilated in Teutoberger Wald |
| XX Valeria Victrix | BC 31 | 296 AD* | Fate Unknown* |
| XXI Rapax | BC 31 | 92 AD | Destroyed by Sarmatian Tribe |
| XXIIDeiotariana | BC 48 | 132/161 AD** | Destroyed** |
| XXII Primigenia | 39 AD | after 300 AD | Disbanded |
| XXX Ulpia Victrix | 105 TAD | after 400 AD | Disbanded |
*Records show that Rome did not know what exactly happened to these Legions, but here are the believed results: --Legio VI Ferrata: Believed Destroyed at Battle of Edessa (260 AD) --Legio VI Hispana: Believed Destroyed at Battle of Abrittus (251 AD) --Legio XX Valeria Victrix: Believed Destroyed during the fall of Allectus (296 AD) **Legions are presumed Destroyed based on Roman records, however, records do not agree as to the date and event of their Destruction. The possibilities are specified below: 132 AD: Destroyed During Attempts to Crush the First Jewish Rebellion in Judea 161 AD: Destroyed Druing Third Parthian Campaign against Parthians in Armenia
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