You're probably thinking about the 1215 Magna Carta - which is the thirteenth century.
Jason Taliodoros has written: 'Law and theology in twelfth-century England'
common law
Common Law
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Through the Renaissance.
I think you are referring to the body of "Common Law" which is basically a massive accumulation of court judgements, Royal proclamations and ancient traditions which form the under pinning of the Legal system of England.
Magna Carta of 1215
The English law of contract traces back to the industrial revolution and civil law. It was influenced by ancient Greek and Roman thought. Plato gave some thought to the concept and recognized action should be taken if a contract isn't fulfilled.
If "our' laws equals "US" laws, the Constitution and much of the early laws were much influenced by the ideas of the French Enlightenment of the 18th century. So "France" would be the answer here.
The English code of the 18th century is often referred to as the "Old Bailey" or "Common Law," which encompassed the legal practices and statutes of the time. It was characterized by a system of customary laws and legal precedents established by court decisions. This period also saw the development of various legal reforms, including those aimed at addressing crime and punishment. Overall, the legal framework of the 18th century laid the groundwork for modern English law.
colonial law is not law are rules of english law