King John affixes his royal seal to the Magna Carta on June 15, 1215 at Runnymede, England. The document was basically a negotiated peace treaty between the King and his barons who were unhappy with King John's rule due to heavy taxation and perceived abuses of power.
The sealing of the agreement failed to resolve the conflict and civil war broke out shortly after. The Magna Carta laid the foundation for future legal and constitutional developments, including the concept of the rule of law and limitations on governmental power. More