the example of the famous council of Lebanon for the Maronites held in 1730, and that of Zamosc for the Ruthenians in 1720, the Eastern Churches, at the suggestion of Leo XIII, drew up in plenary assembly their own local law: the Syrians at Sciarfa in 1888; the Ruthenians at Leopol in 1891; and a little later, the Copts. Benedict XV founds the Sacred Congregation for the Oriental Church Until 1917, the Sacred Congregation for the Propagation of the Faith had a division for the "Affairs of the Oriental Rite", which ceased to exist on 30 November 1917. Benedict XV founded the Sacred Congregation for the Oriental Church by the motu proprio Dei Providentis. The Sacred Congregation for the Oriental Church was presided over by the Supreme Pontiff himself and included several cardinals of the Holy Roman Church, one of which functioned in the capacity of Secretary. There were also Councillors, chosen from among the more distinguished clergy and those experienced in things oriental. Pius XI A commission was established in 1929 by Pius XI to draw up a schema for an Oriental Catholic canon code, the Commissionem Cardinalitiam pro Studiis Praeparatoriis Codificationis Orientalis. In 1935, the same pope established another commission with the same goal, the Pontificia Commissio ad redigendum Codicem iuris canonici orientalis, to replace the former. Reforms of Pius XII With his concern for the Eastern Catholic Churches and their combined ten million members, Pope Pius continued the initiatives of his predecessors, especially Pope Leo XIII and Pope Pius XI. These Churches, not unlike the Latin Church before the Code of 1917, had their own ancient laws, which were not codified. The reform of Oriental Church laws, the CIC Orientalis for the Oriental Churches, was completed during the pontificate of Pius XII. The new, very comprehensive Church laws governed matrimonial law, Church trials, administration of Church properties and religious orders, and individual rights. Code of Canons of the Eastern Churches The Code of Canons of the Eastern Churches (CCEO) is the 1990 codification of the common portions of the Canon Law for the 23 of the 24 sui iuris Churches in the Catholic Church. It is divided into 30 titles and has a total of 1540 canons, with an introductory section of preliminary canons. Pope John Paul II promulgated the CCEO on 18 October 1990 by the document Sacri Canones, and the CCEO came into force on