These elevations are a late medieval introduction into the Roman Rite. The custom began in northern Europe and was accepted in Rome only in the fourteenth century. At first, the only elevation at this point was that of the Host, with none of the Chalice. The first bishop known to have ordered the showing of the Host was Bishop Eudes de Sully of Paris (1196–1208). This custom spread rapidly, but that of showing the Chalice appeared only later and was not universal and has never been adopted by the Carthusians. Genuflections to accompany the elevations appeared still later and became an official part of the rite only with Pope Pius V's Roman Missal of 1570.