Prior to World War II, the butterfly sword was not well-known outside of China. The deadly swords feature a single-edged blade that is as long as a human forearm. This length allowed for concealment inside loose sleeves or boots. Typically, butterfly swords are wielded in pairs.
The most famous version of the Bowie Knife was designed by Colonel James “Jim” Bowie and was presented to blacksmith James Black in the form of a carved wooden model in December of 1830. Black produced the knife ordered by Bowie although its common use refers to any large sheath knife with a clip point.