Northwestern University
League of Nations Statistical and Disarmament Documents
"Contains the full text of 260 League of Nations documents. The documents focus on three areas: the founding of the League, international statistics published by the League, and the League's work toward international disarmament."
Other
Le Mo: 1918 1933 Der Volkerbund
Brief overview from LeMO of the founding and history of the League of Nations, which was formed as a consequence of the Treaty of Versailles, which officially ended World War I.