The Cornish are, of course, integrated into the larger English polity, but the 1950s brought the formation of the Sons of Cornwall (Mebyon Kernow), a group dedicated to the preservation of Cornish customs and linguistic traditions, but also strongly committed to the concept of a domestically self-governing Cornwall. While the impact of this group has been rather small on the national level, its participation in and Influence on local politics has been great in recent times.