The League of Nations was established by which key document?

The League of Nations was established by the Treaty of Versailles, which was signed at the end of World War I in 1919. This treaty not only aimed to formally conclude the war but also included a number of provisions intended to promote peace and prevent future conflicts. One of the most significant features of the Treaty of Versailles was the establishment of the League of Nations, an international organization designed to foster diplomatic dialogue and cooperation among countries, ultimately working to maintain global peace and security.

The Fourteen Points, proposed by President Woodrow Wilson, outlined a vision for a just peace and included the idea of a league but was not the formal document that established it. The Treaty of Paris primarily dealt with the terms of peace and territorial adjustments for different nations after the war and did not create the League. The Kellogg-Briand Pact, promoting mutual renunciation of war, was aimed at preventing wars but came later and did not establish the League of Nations. Thus, the Treaty of Versailles is indeed the key document that officially established the League.