Celtic languages are spoken in many parts of the British Isles today. These include Irish, Scottish Gallic, Welsh Cornish and the man's language native to the Iowa man. Across the water in northwestern France however, a Celtic language is still spoken in parts of Brittany. Known as Breton, the language was introduced into the region of Armoreca, known as Brittany by migrants from ancient Britain and the 5th and 6th centuries AD. Simply put, Celtic languages can be divided into two broad categories, insular Celtic languages and older continental Celtic languages, such as Golaus. Insular Celtic languages are subdivided into two categories, Goliath-Delic languages such as Irish, Scottish Gallic and Manx and Brothonic languages, such as Breton, Cornish and Welsh. As an insular Celtic, Brothonic language, Breton is most closely related to Cornish than any other Celtic language. Today, Breton is still spoken along with French in Western Brittany where as in Eastern Brittany, the romance language of Gallow is the most common minor language. In Brittany, there is also a Breton custom of bands playing bagpipes, thought to be a Scottish inspired tradition, such a band is known as a bagat. A 2011 estimate suggested that 250,000 people could speak Breton, a significant drop from the 2 million speakers at the start of the 20th century. It is listed as a severely endangered language by Yinesco and many of its speakers are elderly, although there has been an increase in recent years of children attending bilingual Breton French classes.