The crossword solutions for the term Argonne Article are LES, which stands for 'L'Ecole Superieure, ' a French term meaning 'higher education.' The Argonne Article is a document written by the French government in 1806 that established the first higher education institution in France. It was named after the Argonne Forest, where it was signed. The document set out the rules and regulations for the new institution, which would become the foundation of the modern French university system.