Ulysses S. Grant was the final commander of the Union Army
A. Polar regions. Explorers didn't start getting close to the ice caps until a decade or two before world war 2 started.
I think that maybe people are saying different answers because there might have been many such laws. I will mention one example: the Diversity Visa Immigration: it means that people from Eastern Europe have a higher change of obtaining a visa due to a smaller population in the US than the western European Countries.
