When did the Portuguese language develop?
History of Portuguese
The Portuguese language developed in the Western Iberian Peninsula from Latin spoken by Roman soldiers and colonists starting in the 3rd century BC. Old Portuguese, also known as Galician-Portuguese, began to diverge from other Romance languages after the fall of the Western Roman Empire and the Germanic invasions, also known as barbarian invasions in the 5th century and started appearing in written documents around the 9th century. By the 13th century, Galician-Portuguese had become a mature language with its own literature and began to split into two languages. However, the debate of whether Galician and Portuguese are nowadays varieties of the same language, much like American English or British English, is still present. In all aspects—phonology, morphology, lexicon and syntax—Portuguese is essentially the result of an organic evolution of Vulgar Latin with some influences from other languages, namely the native Gallaecian and Lusitanian languages spoken prior to the Roman domination.
Cochin Portuguese creole
Cochin Indo-Portuguese, known locally as "Portuguese" or "Cochin Portuguese", formed from contact between Portuguese, Malayalam and other languages spoken in old Cochin. Cochin was one of the first contact languages to spring up from European contact in Asia, and it became the mother tongue of part of the local Catholic community in the 15th to 19th centuries. It emerged from Catholic Indo-Portuguese households in Malabar, and it became sufficiently established that it continued under Dutch occupation in the 17th century. Speakers started shifting away from the language around the turn of the 19th century. The last native speaker, William Rozario, died on 20 August 2010 in Vypeen. Some in Cochin still understand it to a degree.