nov 2, 1215 - -1215 Mangna Carta The barons influenced King John by the treat of rebellion because of heavy taxation etc. It was a constitution that was the foundation of common law for the country. This also had an influence for the founders of the United States of America. This document didn't work out too well because later broke out a civil war.
Added to timeline:
Date:
nov 2, 1215
Now
~ 810 years ago