This means that City View could be in Cleveland with Steelyards stores. Roman and Chinese steelyards were independently invented around 200 BC. Steelyards dating from AD 100 to 400 have been unearthed in Great Britain. Even larger steelyards were three stories tall and used to weigh fully laden horse-drawn carts. Steelyards of different sizes have been used to weigh loads ranging from ounces to tons.