Single-Edged Curved Swords

Single-edged curved swords are a class of bladed weapons defined by a convex-curved blade sharpened along one edge only, optimized for a slashing or draw cut rather than a symmetrical thrust. The katana is a Japanese sword characterized by a curved, single-edged blade with a circular or squared guard and a long grip to accommodate two hands, developed for mounted and foot combat in feudal Japan. The scimitar is a single-edged sword with a convex curved blade of about 75 to 90 centimeters associated with Middle Eastern, South Asian, and North African cultures, prized for its cutting efficiency on horseback. The sabre is a type of backsword with a curved blade associated with the light cavalry of the early modern and Napoleonic periods, descended from earlier Central Asian and Eastern European curved-blade cavalry swords. Despite arising in unconnected sword-making traditions on three continents, all three converge on the same curved, single-edged geometry because that shape consistently outperforms a straight blade for a mounted slashing cut.