What country joined the League of Nations in 1919?

The League of Nations was established in 1920, following the end of World War I, and its founding members included 42 countries. One of the notable countries that joined the League of Nations in 1919, prior to its official formation, was France, which played a significant role in its creation. Other countries, such as the United Kingdom and Italy, were also part of the original member states that contributed to the League's goals of promoting peace and cooperation.