Slow slicing (simplified Chinese: 凌迟; traditional Chinese: 凌遲; pinyin: língchí; Wade–Giles: ling-ch'ih, alternately transliterated ling chi or leng t'che), also translated as the slow process, the lingering death, or death by a thousand cuts (simplified Chinese: 杀千刀; traditional Chinese: 殺千刀) or “千刀万剐”, was a form of torture and execution used in China from roughly AD 900 until it was banned in 1905. In this form of execution, a knife was used to methodically remove portions of the body over an extended period of time, eventually leading to their death. The term língchí derives from a classical description of ascending a mountain slowly. Lingchi was reserved for crimes viewed as especially severe, such as treason and killing one's parents. The process involved tying the person to be executed to a wooden frame, usually in a public place. The flesh was then cut from the body in multiple slices in a process that was not specified in detail in Chinese law and therefore most likely varied. In later times, opium was sometimes administered either as an act of mercy or as a way of preventing fainting. The punishment worked on three levels: as a form of public humiliation, as a slow and lingering death, and as a punishment after death.