Prohibtion does not work, if people want it they will get it look at the 1920s the bootlegers smugled moonshine, people still drank even if it is illegal they might as well have it legal because it creates more jobs and money because you can tax it. And now with marijuana people still want to do it even though it is illegal you might as well make it legal because it would make jobs and money for the government through taxes.
There were alot of causes to WWI, both sides are to blame
I agree racism is reeally never going to go away it is a very big problem
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WWI was a very bloody war because of advanced weapons such as Machine guns and chemical warfare while using out of date tactics
The USS Maine explosion caused the Spanish American war.