| Legio I Germanica | |
|---|---|
| Active | 48 BC – 70 AD |
| Country | Roman Republic and Roman Empire |
| Type | Roman legion (Marian) |
| Role | Infantry assault (some cavalry support) |
| Size | Varied over unit lifetime. Approx. 3,500 fighting men + support at the time of creation. |
| Garrison/HQ | Hispania Tarraconensis (30 – 16 BC) Germania Inferior (beginning 1st century – 69 AD) |
| Nickname(s) | Germanica, under Augustus |
| Mascot(s) | Taurus |
| Engagements | Battle of Pharsalus (48 BC) Cantabrian Wars (29 BC–19 BC) Drusus Germanic campaign Revolt of the Batavi (70) |
| Commanders | |
| Notable commanders | Julius Caesar (campaign) Drusus (campaign) Fabius Valens (officer) Herennius Gallus (officer) |
Legio I Germanica, (lit. First Legion "Germanic"), was a legion of the Imperial Roman army, possibly founded in 48 BC by Julius Caesar to fight for him in the civil war against Pompey. The title germanic is a reference to its service in the Germanic Wars, rather than the place of origin of its soldiers.[1] After the Revolt of the Batavi (AD 70), the remaining men of the Germanica were added to Galba's seventh legion, which became VII Gemina. The emblem of Legio I is unknown, but it was probably Taurus, like all the other legions levied by Caesar (except the V Alaudae).