La Spezia–Rimini Line

The La Spezia–Rimini Line (also known as the Massa–Senigallia Line), in the linguistics of the Romance languages, is a line that demarcates a number of important isoglosses that distinguish Romance languages south and east of the line from Romance languages north and west of it. The line runs through northern Italy, very roughly from the cities of La Spezia to Rimini. Romance languages on the eastern half of it include Italian and the Eastern Romance languages (Romanian, Aromanian, Megleno-Romanian, Istro-Romanian), whereas Spanish, French, Catalan, Portuguese as well as Gallo‒Italic languages are representatives of the Western group. (Sardinian does not fit into either Western or Eastern Romance.)

It has been suggested that the origin of these developments is to be found in the last decades of the Western Roman Empire and the Ostrogothic Kingdom (c. 395–535 AD). During this period, the area of Italy north of the line was dominated by an increasingly Germanic Roman army of (Northern) Italy, followed by the Ostrogoths; whereas the Roman Senate and Chalcedonian Christianity became the dominant social elements south of the line. As for the provinces outside Italy, the social influences in Gaul and Iberia were broadly similar to those in Northern Italy, whereas the Balkans were dominated by the Byzantine Empire at this time (and later, by Slavic peoples).

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