Umbria seems to have switched from its own script in the 2nd century BCE to Latin in the 1st. After the subjugation of Southern Italy in the Pyrrhic War (280–275 BCE), Messapic (using a Greek-derived alphabet) disappeared completely, and with the exception of the two Griko enclaves that still exist in the 21st century, Latin replaced all Greek in Magna Graecia. Livy reports that the local government of Cumae – the Greek colony that may have originally spread its alphabet to the Latins via the Etruscans – made an unsolicited request in the 2nd century BCE to henceforth use Latin in public affairs. After the First Punic War (264–241 BCE), the Latin script gradually took over written communication on Sardinia from Paleo-Sardinian (also termed "Nuragic"), on Corsica from Paleo-Corsican, and on Sicily from Greek and the local Sicula, Sicani, and Elymian languages. The Roman conquest of Mediolanum (Milan) in 222 BCE commenced the Latinisation of the Po Valley.