Its first depiction in artwork was on lacquer-ware boxes from the ancient State of Chu. This type of harness put pressure upon the sternum, where the line of traction is directly linked with the skeletal system of the horse, allowing for nearly full exertion. It was in universal use by the time of the Chinese Han Dynasty (202 BC – 220 AD), depicted in artwork of hundreds of different carvings, stone reliefs, and stamped bricks showing it featured on horses pulling chariots. This type of breast-strap harness became known in Central Asia and elsewhere with the Avars, Magyars, Bohemians, Poles, and Russians during the 7th to 10th centuries. After Central Asia, the first breast-strap harness was spread to Europe by the 8th century (in depicted artwork), and became more widespread by the following 9th century (for example, depicted in a tapestry of the Oseberg ship burial).