Once occupied much of mainland Europe. The Celts were forced west, where there remain only six Celtic nations in parts of the United Kingdom, the Isle of Man, Ireland, and Brittany in France. Galicia in northwestern Spain is the seventh Celtic nation as its Celtic heritage is evident to this day, but the six official nations are determined by the existence of a Celtic language that survived and Galicia has none. The six remaining Celtic nations, are all distinct. Ireland and Scotland are the most widely recognized.