WW1. After WW2, the UN was created and anyone who was part of the League of nations joined the UN.
CLOBIA
In 1994 Brunei became the 139th county to join UN after its Independance from British Colonial Rule.
They didn’t join anyone.
The UK was one of the founding members of the UN, in 1945.
in 1980
1945.
on september18 1973?
october 25,1945
2 March, 1992 the Republic of Kazakhstan joined the UN.
Libya joined the UN on September 18th, 1990.
2594 CE