Cisalpine Gaul (, also called Gallia Citerior or Gallia Togata) was the part of Italy inhabited by Celts (Gauls) during the 4th and 3rd centuries BC. After its conquest by the Roman Republic in the 220s BC it was considered geographically part of Roman Italy but remained administratively separated. It was a Roman province from c. 81 BC until 42 BC, when it was de jure merged into Roman Italy as indicated in Caesar's unpublished acts (Acta Caesaris). Cisalpine means on the hither side of the Alps (from the perspective of the Romans), as opposed to Transalpine Gaul (on the far side of the Alps).