Solomon's  Law

Legal history or the history of law is the study of how law has evolved and why it has changed. Legal history is closely connected to the development of civilisations and operates in the wider context of social history. Certain jurists and historians of legal process have seen legal history 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 legal history a branch of intellectual history. Twentieth-century historians 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 analyzing case outcomes, transaction costs, and numbers of settled cases, they have begun an analysis of legal institutions, practices, procedures and briefs that gives a more complex picture of law and society than the study of jurisprudence, case law and civil codes can achieve.

Ancient world

Ancient Egyptian law, dating as far back as 3000 BC, was based on the concept of Ma'at, and was characterised by tradition, rhetorical speech, social equality and impartiality. By the 22nd century BC, Ur-Nammu, an ancient Sumerian ruler, formulated the first extant law code, consisting of casuistic statements ("if... then..."). Around 1760 BC, King

Hammurabi further developed Babylonian law, by codifying and inscribing it in stone. Hammurabi placed several copies of his law code throughout the kingdom of Babylon as stelae, for the entire public to see; this became known as the Codex Hammurabi.

The most intact copy of these stelae was discovered in the 19th century by British Assyriologists, and has since been fully transliterated and translated into various languages, including English, German and French. Ancient Greek has no single word for "law" as an abstract concept, retaining instead the distinction between divine law (thémis), human decree (nomos) and custom (díkē). Yet Ancient Greek law contained major constitutional innovations in the development of democracy.

United States

The United States legal system developed primarily out of the English common law system (with the exception of the state of Louisiana, which continued to follow the French civilian system after being admitted to statehood). Some concepts from Spanish law, such as the prior appropriation doctrine and community property, still persist in some US states, particularly those that were part of the Mexican Cession in 1848.

Under the doctrine of federalism, each state has its own separate court system, and the ability to legislate within areas not reserved to the federal government. 

Modern European law

The two main traditions of modern European law are the codified legal systems of most of continental Europe, and the English tradition based on case law.

As nationalism grew in the 18th and 19th centuries, lex mercatoria was incorporated into countries' local law under new civil codes. Of these, the French Napoleonic Code and the German Bürgerliches Gesetzbuch became the most influential.

As opposed to English common law, which consists of massive tomes of case law, codes in small books are easy to export and for judges to apply. However, today there are signs that civil and common law are converging. European Union law is codified in treaties, but develops through the precedent set down by the European Court of Justice. 

• Reference: Wikipedia - U Tube