charges for ranging distance. Use as offensive weapon The stiletto was later adopted throughout Italy as the favored offensive thrusting knife (arma manesca) of the medieval assassin,<ref name="Robertson"/ so much so that it was invariably prohibited as a treacherous weapon (arma insidiosa) by the authorities of the day. The stiletto was preferred by assassins as it was silent, easily concealed inside a sleeve or jacket, and featured a blade capable of easily penetrating the heavy leather and fabric clothing of the day, while inflicting mortal wounds that tended to bleed less than those made by other types of knives. In Italy, the stiletto began to be employed along with the dagger as a fighting weapon; a 1536 dueling treatise authored by Achille Marozzo, Opera Nova, contains sections on dagger and stiletto fighting. By the time of the Renaissance, the term stiletto had come to describe a range of slender thrusting knives closely resembling the French poignard, many with conventional dagger-profile blades and sharpened edges, but always retaining the slim profile and needle-like point. To lighten the weapon, many stilettos were equipped with blades carrying fullers over a portion of their length. The stiletto remained a popular weapon of criminals or political assassins from the 16th through the end of the 19th century, particularly in France, Corsica, and Italy. While still used as a weapon of surprise and assassination, the use of stiletto in preference to the dagger in close combat confrontations between adversaries became widespread throughout Italy, Sardinia, and Corsica. The continued popularity of the stiletto in the Kingdom of Sicily resulted in the development of the scherma di stiletto siciliano (Sicilian school of stiletto fighting). A person skilled in the use of a stiletto would thrust the knife deep into the victim, then twist the blade sharply in various directions before retracting it, causing the sharp point to inflict severe internal damage not readily apparent when examining the entrance wound. The stiletto followed the first wave of Italian diaspora to the city of New Orleans, Louisiana during the mid-19th century, where the knife became a popular weapon of gamblers, gang members, and assorted assassins. The stiletto was involved in so many stabbings and murders in New Orleans that the city passed an ordinance in 1879 outlawing the sale or exhibition for sale of any stiletto within the city limits. Italian immigrants to America frequently purchased or made such knives