What did the United States adopt by joining the United Nations?

It adopted the Convention for the Pacific Settlement of International Disputes and established the Join the conversation.

Explanation: Hope this helps :

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation:

a

"the land of the dead"