Colonialism is the establishment, exploitation, maintenance, acquisition and expansion of colonies in one territory by people from another teritory. It is a set of unequal relationships between the colonial power and the colony and between the colonists and the indigenous population.
It was the influence of Athens increased in Greece
Hoover supported voluntarism or individual voluntary efforts to assist others. He also encouraged other wealthy individuals to donate their money clothing or food to charity volunteer organization such as volunteers of America provided relief to millions of Americans during the depression.