The main reason we didn't join the League of nations is because we had the policy of isolationism
isolationism = America wants to focus on ourselves, we want to stay out of trouble
The answer is hernando de soto
There are a number of reasons. Not just three.
<span> Political conflict
</span><span>The Enlightenment
</span><span>Economic hardship
</span><span>Ineffective ruler
</span><span> International: struggle for hegemony
</span><span> Social antagonisms</span>
Answer: William McKinley
Explanation: William McKinley Jr.
(January 29, 1843 – September 14, 1901) was the 25th president of the United States, serving from March 4, 1897, until his assassination six months into his second term.