One of the main reason why more people didn't foresee the economic collapse of the 1930s is because it happened so quickly with no warning, since the US economy during the 1920s was incredibly strong and showed no signs of slowing.
Athenian democracy developed around the 6th century BC in the Greek city-state (known as a polis)
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That's Rationalization my friend.
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Yes it is true he did want to make a independent country
Disease was the most dangerous thing