This is because it was when the Allies were able to defeat the Axis powers, which gave hope to the Allies to fight stronger. Also, when they defeated Axis powers at that battle, they(ALLIES), now had vantage points on both sides of Germany; east(UK) and west (Russia).
The economy is stimulated by giving money to consumers.
Two factors that helped to contribute to the scientific revolution in Europe in the mid 1500s were economic expansion and also the translation of ancient Greek texts into the vernacular. Economic development during the Renaissance period led to a new need for engineers, architects, and inventors to help to develop society which led to further development of scientific thought. Additionally with the rediscovery of Ancient Greek texts, thinkers of the time began to further develop empirical ways of thinking based in Aristotelian methods of logic and reasoning. hope it helps :)
