The nobles wrote this document in 1215 because King John tried to take all the power. The nobles were trying to limit the King's power over them.
In 1620, the pilgrims (only men) created The Mayflower Compact. They wrote this because the area was not in control by anyone at the time. They were trying to accomplish a government where they could all protect each other.
Parliament wrote this document in 1689 in order to limit the power of the king and give more power to the people. The people wanted more say in their government.