After a series of unforgivable blunders, John’s barons rose up in rebellion against him for what would not even be the final time during his reign. However, this was a war that John would not win. After forcing a peace, John’s barons demanded that he sign the Magna Carta, a document that famously restricted the powers of the king and enabled the nobility. In a position where he was unable to refuse, John did so, instating a document that remains enshrined in English law even today.
He instated the Magna Carta. (7/10)