The turning point in Greek history is considered to be the "Peloponnesian War," since this was when Sparta decided to "check" the fast rising power of Athens and reduce Greek power in general. <span />
The United States of 1920s saw dramatic changes taking place in the socioeconomic make up of the country.
As the United States emerged as an Industrial Power, the working class began to cultivate groups and unions in order to demand better pay and working conditions.
There was also an imposition of a ban on alcohol, which was extremely unpopular and gave rise large gangs of organized crime, funded by illegal alcohol smuggling.
This is the time which also gave rise to many religious and quasi-religious organizations with their own goals to challenge government policies.