I think that the best answer is the geographic location: many other countries (Sweden for example) have tried being neutral at different times but did not manage to: but the fact that the US has only two boundaries, and that both other countries also have a history of fighting from independence from a European power, makes it possible that unless US decideds to get involved in international politics, it can be "left alone".
For the most part, no, they were light pink.
But, with the exception of the issues of the versions prior to 1977.
The lands of Africa were not explored at this time due to disease, foreign malitias, and transportation. They also were very secluded to their lands during this time.
I believe it is C.
ROMANS- Education in ancient Rome progressed from an informal, familial system of education in the early Republic to a tuition-based system during the late Republic and the Empire. The Roman education system was based on the Greek system – and many of the private tutors in the Roman system were Greek slaves or freedmen.
GREEKS-The government systems of ancient Greece were varied as the Greeks searched for the answers to such fundamental questions as who should rule and how? Should sovereignty (kyrion) lie in the rule of law (nomoi), the constitution (politea), officials, or the citizens? Not settling on a definitive answer to these questions, government in the ancient Greek world, therefore, took extraordinarily diverse forms and, across different city-states and over many centuries, political power could rest in the hands of a single individual, an elite or in every male citizen: democracy - widely regarded as the Greeks' greatest contribution to civilization.
