English law
Common law is a term with historical origins in the legal system of England. It denotes, in the first place, the judge-made law that developed from the early Middle Ages as described in a work published at the end of the 19th century, "The History of English Law before the Time of Edward I", in which Pollock and Maitland expanded the work of Coke (17th century) and Blackstone (18th century). Specifically, the law developed in England's Court of Common Pleas and other common law courts, which became also the law of the colonies settled initially under the crown of England or, later, of the United Kingdom, in North America and elsewhere; and this law as further developed after those courts in England were reorganised by the Supreme Court of Judicature Acts passed in the 1870s, and developed independently, in the legal systems of the United States and other jurisdictions, after their independence from the United Kingdom, before and after the 1870s. The term is used, in the second place, to denote the law developed by those courts, in the same periods (pre-colonial, colonial and post-colonial), as distinct from within the jurisdiction, or former jurisdiction, of other courts in England: the Court of Chancery, the ecclesiastical courts, and the Admiralty court.
Law in Europe
The law of Europe has a diverse history. Roman law underwent major codification in the Corpus Juris Civilis of Emperor Justinian, as later developed through the Middle Ages by medieval legal scholars. In Medieval England, judges retained greater power than their continental counterparts and began to develop a body of precedent. Originally civil law was one common legal system in much of Europe, but with the rise of nationalism in the 17th century Nordic countries and around the time of the French Revolution, it became fractured into separate national systems. This change was brought about by the development of separate national codes, of which the French Napoleonic Code and the German and Swiss codes were the most influential. Around this time civil law incorporated many ideas associated with the Enlightenment. The European Union's Law is based on a codified set of laws, laid down in the Treaties. Law in the EU is however mixed with precedent in case law of the European Court of Justice. In accordance with its history, the interpretation of European law relies less on policy considerations than U.S. law.