Your answer is he opened Japan to the west.
Germany was hit particularly hard during the American Great Depression. The reason being was that America was a major source of loans for Germany's reparations after WW1. When Hitler came to power as the Chancellor of Germany, he incited the entire country into a nationalistic rage and establishing a totalitarian single party state, with the support of the Nazi Party.
The answer is: Cities
Approximately, around 80% of united states population live in the cities. This happen because most of job opportunities that exist in united states (whether it's art, technology, or manufacturing) are located in the cities.
Because of this, even people who born in rural areas start to move to inner cities in order to find jobs and sustain their living.
One outcome of the Pearl Harbor attack was an atrocious destruction of an large portion of our naval ships anchored there, along with the horror of a very large number of our navy's seamen . Another outcome was the realization by American armed forces and navy personnel that we had been lax in awareness and had we not been too relaxed at the time, this attack by the Japanese may well have been thwarted at the least. Lastly, a major outcome of the Pearl Harbor attack was that America was furious and declared war - after which America began producing arms and preparing for battles with all haste.
In ancient Rome, it was the Patricians who represented the rights of plebeians. The plebeians had very few rights of there own, and often were not able to makde decisions.