. . . . . "Colonialism is the establishment, exploitation, maintenance, acquisition, and expansion of colony in one territory by a political power from another territory. It is a set of unequal relationships between the colonial power and the colony and often between the colonists and the indigenous population.The European colonial period was the era from the 16th century to the mid-20th century when several European powers established colonies in Asia, Africa, and the Americas."@en .