Magna Graecia

from The American Heritage® Dictionary of the English Language, 4th Edition

• The ancient Greek seaport colonies of southern Italy and Sicily from the eighth to the fourth century B.C. Cumae and Tarantum (modern Taranto) remained significant after the decline of the other colonies.

from Wiktionary, Creative Commons Attribution/Share-Alike License

• proper n. The coastal parts of Sicily and southern Italy once colonized by Greek settlers