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A distinction is usually made between Old Portuguese (português antigo, português arcaico), referring to the period from the earliest texts to 1540, Classical Portuguese (1540-1850), and Modern Portuguese (1850 to the present). There is sometimes a further subdivision of the Old Portuguese period into a Galician-Portuguese period (origins to 1350), during which the linguistic and cultural unit of Galicia and Portugal remained strong, and the Old Portuguese period proper (1350-1540).