CAIRO – 13 September 2021: The world celebrates International Law Day on September 13 of every year. The word law is taken from the Greek word canon, which means a straight stick. Law is a social science, the subject of man and his behavior with others, his actions and reactions. As for public law, it is concerned with those disputes that arise between a structure affiliated with the state and others. Among the most important subsidiary laws affiliated with it are: Administrative Law, Constitutional Law, and Tax LawIt is worth noting that the first World Law Day was proclaimed throughout the world on September 13, 1965 on the opening day of the Washington World Conference on World Peace Through Law which was attended by 3,200 individuals from 121 countries.