The Magna Carta promised the protection of rights.
Magna Carta . First drafted by the Archbishop of Canterbury to make peace between the unpopular King and a group of rebel barons , it promised the protection of church rights , protection for the barons from illegal imprisonment , access to swift justice , and limitations on feudal payments to the Crown , to be implemented through a council of 25 barons . Lawyers and historians at the time believed that there was an ancient English constitution , going back to the days of the Anglo-Saxons , that protected individual English freedoms . They argued that the Norman invasion of 1066 had overthrown these rights , and that Magna Carta had been a popular attempt to restore them , making the charter an essential foundation for the contemporary powers of Parliament and legal principles such as habeas corpus . Research by Victorian historians showed that the original 1215 charter had concerned the medieval relationship between the monarch and the barons , rather than the rights of ordinary people , but the charter remained a powerful , iconic document , even after almost all of its content was repealed from the statute books in the 19th and 20th centuries .