For the Democratic side, it was the US. For the Eastern side, it is the USSR. However, the USSR was greatly weakened, and so in the beginning years the USSR was not counted as a superpower.
So you're answer is US.
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In general, living conditions have greatly improved during this time due mostly to technological advances that allow products to be produced for less money. A great amount of poor nations still exist, however. <span />
During the new morality of the 1920s, it had helped woman to
work and go to colleges and their sense of fashion started to look more
youthful as it change despite that, the automobile played a role in encouraging
the new morality because this has helped the youth of the nation to be more
independent in which they are not likely to be dependent towards others.
The answer to your question is Rome
