The significance of the year 1215 in England is primarily tied to the signing of the Magna Carta by King John. This landmark document established the principle that everyone, including the king, is subject to the law. It granted certain rights to the nobles and limited the powers of the monarchy, serving as an early step toward constitutional government. The Magna Carta laid the groundwork for individual liberties and legal processes, influencing later democratic principles. Its legacy continues to resonate, symbolizing the struggle for justice and the rule of law in governance.