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.
The Common Law Origins of the Infield Fly Rule
Pointing out examples of dubious play from professional baseball in the 1890s that led to the infield fly rule, the article turned to its legal analogy. Stevens argued that the infield fly rule "emerged from the interplay of four factors, each of which closely resembles a major force in the development of the common law."