Since the Glorious Revolution of 1688, English Bill of Rights 1689, the Monarchy never since had absolute power, there was always a powerful parliament.
The English Civil War, a few decades earlier, was fought between pro-parliament (Oliver Cromwell) and pro-monarchist forces.
Without these events, it's unlikely the U.S. would have been founded explicitly as a Republic. As it was, Alexander Hamilton and other Federalists argued at the constitutional convention for an elective monarchy. (Which is why the presidency is more powerful than the anti-federalists and others would have liked)
1215. There is actually a lesser known document called the "Charter of Liberties" from 1100. It was entirely ignored but was critical influence for the Magna Carta.
The Magna Carta was also basically ignored, but was utterly critical for the English Bill of Rights, which really has been followed, till this day.
And you can make out that (parts of( the US Declaration of Independence was also ignored: "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty, and the Pursuit of Happiness.". Just ask any slave living under that constitution!
The English Civil War, a few decades earlier, was fought between pro-parliament (Oliver Cromwell) and pro-monarchist forces.
Without these events, it's unlikely the U.S. would have been founded explicitly as a Republic. As it was, Alexander Hamilton and other Federalists argued at the constitutional convention for an elective monarchy. (Which is why the presidency is more powerful than the anti-federalists and others would have liked)