During this period, the industrial growth of the United States had great effects on them. Cities have become the country's main economic centers, and the manufacturing and finance industry have overtaken agriculture and livestock as the main sources of income in the United States. The industrialization process drastically increased rural migration. At the end of the American Civil War, about a quarter of the American population lived in cities. In 1918, half of the country's population lived in urban areas. In addition, this period is also marked by the large and unfounded immigration of Europeans to the country.
I believe it was a trial upon Ethel and Julius Rosenberg. The couple were accused of selling nuclear secrets to the Russians, but treason could not be held since the U.S was not at war with the Soviet Union.
Stalin wanted the US and Great Britain to open a second front in France because it would divide the German military. During the time of this statement, Germany's only real military threat came from the Soviet Union. With this in mind, Hitler had the ability to put a huge number of troops on the Soviet Union/German border.
However, if the US and Great Britain planned an invasion through France, that means Hitler would have to move hundreds of thousands, maybe even millions, of troops to France. France, in relation to the Soviet Union, was over 1,000 miles away.
Forcing Germany to fight this two front war would decrease their chance of success.
Culturally, the medieval era was dominated by the church which emphasized human beings' lowliness in contrast to the greatness and holiness of God. The church remained strong in the Renaissance, but humanists of the Renaissance emphasized the God-given capabilities of human beings, created to do great things. And so, many great things were done by energetic and imaginative human beings of the Renaissance -- in art, architecture, literature, science, etc.
Socially, politically, and economically, medieval life focused on feudalism and agricultural life. The people lived on lands owned by the great landowners (the nobility), and the political power centered in the hands of those nobles. Economic value was tied to land ownership and agricultural production. In the Renaissance, cities rose to prominence. Banking and trade and budding industries became new ways of generating wealth, social status, and political power.
Feudalism was initially displayed after the Roman custom of support. Feudalism was a mix of legitimate and military traditions in medieval Europe that prospered between the ninth and fifteenth hundreds of years. Extensively characterized, it was a method for organizing society around connections gotten from the holding of land in return for administration or work.