Define

Imperialism
Colonisation
Royal Niger company

Imperialism is the policy of extending a country's power and influence through colonization, use of military force, or other means.

Colonization is the process by which a foreign power establishes control over a territory and its people, often through the settlement of colonists or the exploitation of resources.

The Royal Niger Company was a British company that was chartered in 1886 with the aim of trading in the Niger River region of West Africa. The company played a significant role in the colonization and exploitation of the region, eventually coming under direct British control when it became the protectorate of Nigeria in 1900.