The Old Italic alphabets developed from the west Greek alphabet, which came to Italy via the Greek colonies on Sicily and along the west coast of Italy. The Etruscans adapted the Greek alphabet to write Etruscan sometime during the 6th century BC, or possibly earlier. Most of the other alphabets used in Italy are thought to have derived from the Etruscan alphabet.
The earliest known inscriptions in the Latin alphabet date from the 6th century BC. It was adapted from the Etruscan alphabet during the 7th century BC. The letters Y and Z were taken from the Greek alphabet to write Greek loan words. Other letters were added from time to time as the Latin alphabet was adapted for other languages.
Information about the languages of ancient Italy
Font including Old Italic alphabets
ALPHABETUM - a Unicode font specifically designed for ancient scripts, including classical & medieval Latin, ancient Greek, Etruscan, Oscan, Umbrian, Faliscan, Messapic, Picene, Iberian, Celtiberian, Gothic, Runic, Old & Middle English, Hebrew, Sanskrit, Old Nordic, Ogham, Kharosthi, Glagolitic, Old Cyrillic, Phoenician, Avestan, Ugaritic, Linear B, Anatolian scripts, Coptic, Cypriot, Brahmi, Old Persian cuneiform: http://guindo.pntic.mec.es/~jmag0042/alphabet.html