The notions of international cooperation emerged as the number of independent states increased and international contacts intensified. International non-governmental organizations like the International Law Association and the International Committee of the Red Cross were founded in the 19th century. These organizations helped to establish the League of Nations, which was the forerunner of the United Nations. Today, there are a vast number of organizations created by intergovernmental agreements and influenced greatly by social, economic, and cultural factors which have been facilitated by the United Nations.

In which year was the League of Nations formed?

1920

The correct answer is Option 4:1920

The League of Nations was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference that ended the First World War.

Note: As per NCERT/CBSE old book, the answer is 1919 which is factually incorrect. The relevant text of the book is produced below:

"The 19th Century saw the commencement of international non-governmental associations such as the International Law Association, in 1873, and the International Committee of the Red Cross, in 1863. These institutions paved the way for the formation of the League of Nations in 1919 which was the predecessor to the United Nations in 1945."