Manuel Irujo, a distinguish columnist and historian, was one of the most relevant person among Basque intellectuals of his time, being the law the discipline in which he showed real knowledge and vocation, although he was a lawyer by profession and had a great reputation as a jurist. In this work Irujo exposes the roots and reasons for the Basque Legal Institutions, as a result of the tradition and Basques’ conception of law. A conception sometimes faced with laws, often imposed, and that reflects in essence the identity characteristic of a nation.