Common law
The common lawso named because it was "common" to all the king's courts across Englandoriginated in the practices of the courts of the English kings in the centuries following the Norman Conquest in 1066. Prior to the Norman Conquest, much of England's legal business took place in the local folk courts of its various shires and hundreds. A variety of other individual courts also existed across the land: urban boroughs and merchant fairs held their own courts, as did the universities of Oxford and Cambridge, and large landholders also held their own manorial and seigniorial courts as needed. Additionally, the Catholic Church operated its own court system that adjudicated issues of canon law.
Oliver Wendell Holmes Jr.
"The Common Law" has been continuously in print since 1881, and remains an important contribution to jurisprudence. The book also remains controversial, for Holmes begins by rejecting various kinds of formalism in law. In his earlier writings he had expressly denied the utilitarian view that law was a set of commands of the sovereign, rules of conduct that became legal duties. He rejected as well the views of the German idealist philosophers, whose views were then widely held, and the philosophy taught at Harvard, that the opinions of judges could be harmonized in a purely logical system. In the opening paragraphs of the book, he famously summarized his own view of the history of the common law: