The four major legal systems of the world today consist of civil law, common law, customary law, and religious law. However, each country often develops variations on each system or incorporates many other features into the system.
Initially based on Roman Law and eventually progressed to the Code de Rohan, Code Napoleon with influences from Italian Civil Law. British Common Law however is also a source of Maltese Law, namely in Public Law
federal court system based on English common law; each state has its own unique legal system, of which all but one (Louisiana's) is based on English common law.