There are three sources of law but there are two terms in law, one is common law and the other is equity where we will consider. Here's a brief history of how common law and equity came about. At the time of Norman Conquest, there are courts established all over England with customary law of the locals apply. The customary was obviously not for the county because each customs varies; therefore a centralized system began to emerge. During this time there were an emergence of Court of Common Pleas, The Exchequer and The King's Bench which all carries out the same purpose in the law, these courts were also known as the common law courts. In the later century a writ system developed. A writ is a way that legal action was commenced, later it was realized that the writ system were making new laws, hence the Statute of Westminster II (1285) said that if a complaint has a similar fact then it a new writ could be issued. This restricted people from redeeming their remedies in the common law courts; hence there is an emergence of the Court of Chancery, which administered the law of equity or fairness. In this court remedies could be provided where the common law cannot. Remedies of the common law is only to pay damages in monetary term where as the remedies of equity is injunction, special performance, rectification and rescission. .
During the 5th- 11th century the English courts have widely used common law to enforce their law. This law today is being used in many countries, which have been colonized by the British. This common law have been widely distinguished as laws law of the common people, during the time of Norman Conquest the legal system haven't any centralized system, hence the common law system has helped the law a lot. This law was selected by the King to be the best precedent, which is commonly found in the counties, but not all counties in the country apply to this customs.
