The importance of legal history for modern lawyering.
The law is part of the rules , which is the provision the highest authority in the country have enacted. For the governance and enforcement person in the relationship between them. Any person violating must be punished or be forced to follow.
Legal History is Legal events at the time and different places. It that doesn't mean every case law events but it means Legal events that affect many people both at the international level, regional level or within the borders of any country for example : Codification of criminal law A.D. 1908 in Thailand etc.