Duelists are individuals who engage in a formal combat known as a duel, typically to settle a dispute or defend their honor. Historically, dueling often involved the use of weapons such as swords or pistols, and it was governed by a set of rules known as dueling codes. These codes outlined the conditions under which a duel could take place, including the choice of weapons and the location. Dueling was most popular in the 18th and 19th centuries, particularly in Europe and America. While it was seen as a way to resolve conflicts among gentlemen, it also led to serious injuries or fatalities. Over time, societal views shifted, and dueling became less common, eventually being outlawed in many places.