The Povoan accent known as "Falar poveiro" (Povoan speech), "Sotaque poveiro" (Povoan accent) or simply "Poveiro", occasionally erroneously called "caxineiro", is a sub-dialect or variety of the Portuguese dialect known by linguists as "Interâmnico" and, popularly, as "Nortenho" or Northern Portuguese, which is the oldest dialect of the Portuguese language and it is spoken in Coastal Northern Portugal from Viana do Castelo to Porto and, inland, it reaches Braga. The region is the birthplace of the Portuguese language. There are two subdialects: Porto-Póvoa and Braga-Viana, each of these subdialects is further divided into Porto, Póvoa, Braga, and Viana. The Póvoa one is the transitional dialect between the speeches of Braga and Porto.