French rule over Malta, although brief, left a deep and lasting impression on Maltese culture and society. Several of the Grand Masters of the Knights of Malta had been French, and though some French customs and expressions had crept into common usage in Malta as a result (such as the expressions ""bonġu"" for "good day", and ""bonswa"" for "good evening", still in use today), Napoleon's garrison had a much deeper impact on Maltese culture. Within six days following the capitulation by Grand Master Hompesch on board "l'Orient", Bonaparte had given Malta a Constitution and introduced the Republican concept of "Liberté", "Egalite", "Fraternité" to Malta. Slavery was abolished, and the scions of Maltese nobility were ordered to burn their patents and other written evidence of their pedigrees before the "arbre de la liberté" that had been hastily erected in St. George's Square, at the centre of Valletta. A secondary school system was established, the university system was revised extensively, and a new Civil Code of law was introduced to the legal system of Malta.