Peace and prosperity were short-lived after World War 1 as a global depression weakened Western democracies. ... Underlying economic problems and an American stock market crisis triggered the Great Depression. -A depression ended the short period of prosperity that began in 1924.
Hunter-gathering tribes
small towns and nomadic groups
city-states and small kingdoms
empires
nation-states
the colonists were sick and tired of all the taxes the britich were giving them.