How did florence's wealth contribute to its cultural activity?

Florence had amassed huge wealth because of their famous bankers who gained power. These bankers and politicians, most notably the Medici family, used their wealth to pay for commissions from famous artists of the time which enriched the society. This is one of the reasons why the renaissance began in Italy.

The entry of the United States was the turning point of the war, because it made the eventual defeat of Germany possible. It had been foreseen in 1916 that if the United States went to war, the Allies' military effort against Germany would be upheld by U.S. supplies and by enormous extensions of credit.