The litter is a class of wheelless vehicles, a type of human-powered transport, for the transport of persons. Examples of litter vehicles include lectica (ancient Rome), kiệu [轎] (Vietnam), sedan chair (Britain), litera (Spain), palanquin (France, India, Ghana), jiao (China), liteira (Portugal), wo (วอ, Chinese style known as kiao เกี้ยว) (Thailand), gama (Korea), koshi, ren and kago [駕籠] (Japan) and tahtırevan (Turkey).