I beilive it is 4- The soviet union had recently begun builiding up a nuclear arsenal of its own.
They both caused a lot of Native Americans to be wiped-out from diseases, that they brought to the new world.
It is the country of "Italy" that is noted for beginning the Renaissance movement, specifically in the city of Florence, since this is where many wealthy merchants lived to financed many artistic artist projects.
He created new federal agencies to deal with specific needs of the troops and home front
