A Farwell to Arms (Ernest Hemingway 1929)

A Farewell to Arms: (published 1929)
https://en.wikipedia.org/wiki/A_Farewell_to_Arms

League of Nations: (1920)
https://en.wikipedia.org/wiki/League_of_Nations

History of the United Nations: (UN-1945)
https://en.wikipedia.org/wiki/History_of_the_United_Nations
https://www.un.org/en/about-us/history-of-the-un

World Health Organization (WHO-1948):
https://en.wikipedia.org/wiki/World_Health_Organization

North Atlantic Treaty Organization (NATO-1949)
https://en.wikipedia.org/wiki/NATO

World Economic Forum (1971):
https://en.wikipedia.org/wiki/World_Economic_Forum