This war also led to a complete Romanization of Italy. The Etruscans and the Italic peoples quickly integrated themselves into the Roman world, after gaining Roman citizenship. Their own languages and cultures became extinct in the process, and the term "Roman" came to refer to all inhabitants of Italy. The Romans did not consider Sicily, Sardinia and Corsica part of Italy during this period. Cisalpine Gaul was also not legally considered Italian territory until 42 BC, when it was merged into Roman Italy as indicated in Caesar's unpublished acts ("Acta Caesaris").