Blacksmithing is an ancient art that developed as humans began using metal. Blacksmiths crafted everyday objects like weapons, pots, and tools from metal, as well as construction materials. To make these objects, the blacksmith would fire the forge (hearth) to the correct temperature, then place the metal piece inside the forge and heat it until it glowed red, orange, yellow or white hot. To keep the fires burning, he would use mechanism like a bellows to blow air onto the flames. Once the metal was malleable (softened by the heat and able to be worked), the blacksmith would give it its desired shape by beating it with a hammer directly on the anvil.