Answer to History Question.
Iran, Liberia and Thailand are the only countries on that list that were independent sovereign nations in October, 1913. All the others were colonies or provinces of other countries, or were under military occupation and control by another power, or did not even exist as a national concept.
If you named all three and knew that all the others were not independent nations, then you should be in the Foreign Service. (Maybe you are.)
If you were wrong about more than three countries (you thought independents were not independent, or vice versa) then I suggest you quietly withdraw from any discussions on foreign affairs until you have read some more history.(You probably know that already.)