The conflict that produced Magna Carta didn't happen overnight. It was the result of a complete breakdown in the relationship between King John and his most powerful subjects, the barons. The first major crack appeared in 1204, when John lost the Duchy of Normandy to the French king. For generations, many English barons had also been Norman lords, holding vast estates on both sides of the English Channel. Suddenly, they were forced to choose. Those who remained loyal to John lost their French lands, tying their fortunes entirely to England.

Losing Normandy was a personal humiliation for John, and he became obsessed with winning it back. Wars, however, are incredibly expensive. To fund his ambitions, John squeezed his kingdom for every penny. He used his feudal rights in ways that felt abusive and arbitrary. For example, he dramatically increased the frequency and amount of a tax called scutage. This was a fee a baron could pay to avoid sending knights to fight in the king's army. John levied scutage 11 times in his 17-year reign, compared to just 11 times in the nearly 90 years of the three kings before him combined. He also charged exorbitant fees for inheritances and forced widows to marry men of his choosing, treating his vassals' property as his personal bank account.

For over a decade, the barons grumbled and paid, hoping John's military campaign would succeed. The king amassed a huge coalition of allies and launched his grand invasion of France in 1214. The entire strategy hinged on a decisive battle. It came on July 27, 1214, at the Battle of Bouvines. The result was a catastrophic defeat for John's allies. His army was shattered, his treasury was empty, and his dream of reconquering Normandy was dead.

The defeat at Bouvines was the tipping point. The barons had financed a disastrous failure. They saw John not just as a tyrant, but an incompetent one. They began to organize. By early 1215, a group of rebellious barons had renounced their feudal oaths to the king. They drafted a list of demands, a document we now call the 'Articles of the Barons,' which would become the framework for Magna Carta.

King John initially refused to negotiate. He believed he could crush the rebellion. But the barons held a crucial card. On May 17, 1215, with the support of the city's residents, the rebel army captured London. The loss of his wealthiest city and its financial resources was a devastating blow to the king.

With the rebels in control of London, John's position was untenable. He was forced to the negotiating table. In early June 1215, he agreed to meet the barons in a meadow between Windsor and Staines. That meadow was called Runnymede.

Now, let's test your knowledge of the events that brought the king and his barons to this historic confrontation.