A matchlock is an early type of firearm that uses a simple mechanism to ignite gunpowder. It features a match, usually made of slow-burning cord, which is held in a clamp. When the trigger is pulled, the match is lowered into a flash pan containing gunpowder, igniting it and firing the bullet. Developed in the 15th century, matchlocks were widely used until the 17th century, when they were gradually replaced by more advanced systems like the flintlock. These weapons played a significant role in military history, influencing the design of later firearms and changing the nature of warfare.