Copper frying pans were used in ancient Mesopotamia. Frying pans were also known in ancient Greece where they were called tagēnon (Greek: τάγηνον ) and Rome, where they were called patella or sartago. The word pan derives from the Old English panna. Before the introduction of the kitchen stove in the mid-19th century, a commonly-used cast-iron cooking pan called a 'spider' had a handle and three legs used to stand up in the coals and ashes of the fire. Cooking pots and pans with legless, flat bottoms were designed when cooking stoves became popular; this period of the late 19th century saw the introduction of the flat cast-iron skillet.