Major databases are MTDSG (Multilateral Treaties Deposited with the Secretary-General),
UNTS (United Nations Treaty Series, Cumulative Index, LNTS(League of Nations Treaty Series), and MS database (1998--) (Monthly Statement of Treaties and International Agreements
United Nations Treaty Series (UNTS) (1948--2006) The Collection includes the texts of treaties in their authentic language(s), along with translations into English and French, as appropriate. The collection currently contains over 158,000 treaties and related subsequent actions which have been published in hard copy in over 2,200 volumes (the Library has the first 948 volumes).
League of Nations Treaty Series(5 July 1920 - 3 October 1944) It contains the texts of treaties and records of subsequent treaty actions published in 205 volumes of the League of Nations Treaty Series.