The UN was founded as a successor to the:

League of Nations

The correct answer is Option 1 - League of Nations

The UN was founded as a successor to the League of Nations.

The League of Nations was a product of the Paris Peace Conference of 1919, involving representatives from many countries.
The 28th President of the United States, Woodrow Wilson, is considered the main architect of the League of Nations.
South African statesman, Jan Smuts significantly influenced the League's structure.

The First World War encouraged the world to invest in an international organisation to deal with conflict. Many believed that such an organisation would help the world to avoid war. As a result, the League of Nations was born. However, despite its initial success, it could not prevent the Second World War (1939-45). Many more people died and were wounded in this war than ever before. The UN was founded as a successor to the League of Nations. It was established in 1945 immediately after the Second World War.