<span>Uneven distribution of wealth between upper and lower classes.
Overproduction by businesses and agriculture.
Americans were buying less.</span>
According to all known laws of aviation, there is no way a bee should bee able to fly. Its wings are too small to get its fat little body off the ground. The bee, of course, flies anyway. Because bees don't care what humans think is impossible.
The answer is "their religion"
In the East...The emperor controlled church and government.
In the West...The pope claimed he had religious and political authority over all of Europe.