By 1215, thanks to years of unsuccessful foreign policies and heavy taxation demands, England’s King John was facing down a possible rebellion by the country’s powerful barons. Under duress, he agreed to a charter of liberties known as the Magna Carta (or Great Charter) that would place him and all of England’s future sovereigns within a rule of law. Though it was not initially successful, the document was reissued (with alterations) in 1216, 1217 and 1225, and eventually served as the foundation for the English system of common law
On June 15, 1215, King John met the barons at Runnymede on the Thames and set his seal to the Articles of the Barons, which after minor revision was formally issued as the Magna Carta.
