Stiletto 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
Stiletto heel courtiers. The stiletto heel came with the advent of technology using a supporting metal shaft or stem embedded into the heel, instead of wood or other, weaker materials that required a wide heel. This revival of the opulent heel style can be attributed to the designer Roger Vivier and such designs became very popular in the 1950s. As time went on, stiletto heels would become known more for their erotic nature than for their ability to make height. Stiletto heels are a common fetish item. As a fashion item, their popularity has changed over time. After an initial wave of