The League of Nations was an organization created after World War I to keep peace and protect people all around the world. It kept archives of documents like letters, reports, photos, and maps from all the countries that were part of it. This was done as a way to remember what happened during World War I and all of the challenges that countries had gone through. These archives help us to learn about the people and countries involved in the League of Nations and what was happening in the world at that time.