Among the materials included in this collection are: Status of Multilateral Treaties Deposited with the Secretary-General, which provides information on the status of over 500 major multilateral instruments; United Nations Treaty Series, containing treaties and agreements registered or filed between December 14, 1946 - January, 2005; League of Nations Treaty Series, containing the treaties published by the League of Nations between July 5, 1920 - October 3, 1944.