Answer: They elect a leader
Explanation:
Plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World in the 15th and 16th centuries
When someone decides to change a source with invalid, incorrect, irrelevant, or just idiotic information.
League of Nations.
It fell apart because it failed to stop WWII (partially because the US didn't join it), and after WWII, the United Nations was created.