The answer you might be looking for is:
The Fourth Estate was made up of peasants and city workers.
Why? The Fourth Estate also had the bourgeoisie, The bourgeoisie were wealthy but unlike the nobility had no inherited titles.
The launching of the Russian satellite "Sputkik" was a major even in the Cold War and sparked the "space race". "<span>It raised fears that the Soviet Union could drop a nuclear bomb directly on the United States"</span> would be the best answer.
Most mexicans speak spanish.
The Treaty of Versailles took power away from Germany as they could not have a substantial military. The quote, "No nation can remove this hand from its throat except by the sword," means that the Treaty of Versailles could not be stopped unless there was a war.