Legal history or the history of law is the study of how law has evolved and why it changed. Legal history is closely connected to the development of civilisations and is set in the wider context of social history. Among certain jurists and historians of legal process, it has been seen as the recording of the evolution of laws and the technical explanation of how these laws have evolved with the view of better understanding the origins of various legal concepts; some consider it a branch of intellectual history. Twentieth century historians have viewed legal history in a more contextualised manner more in line with the thinking of social historians. They have looked at legal institutions as complex systems of rules, players and symbols and have seen these elements interact with society to change, adapt, resist or promote certain aspects of civil society. Such legal historians have tended to analyse case histories from the parameters of social science inquiry, using statistical methods, analysing class distinctions among litigants, petitioners and other players in various legal processes. By analysing case outcomes, transaction costs, number of settled cases they have begun an analysis of legal institutions, practices, procedures and briefs that give us a more complex picture of law and society than the study of jurisprudence, case law and civil codes can achieve.