I had the same Question. I looked in my SS journal and found it.
Political rights approved by King John needed the nobles money to finance war, The men on the Mayflower set a good self government, the puritans who expanded the voting rights to Non-Church members wrote the first written constitution, and William and Mary made the right to free elections, were used in the US system of government.
<3 Molly
It was signed on the Mayflower while it was anchored in Provincetown Harbor on November 11th, 1620.