Imperialism is when a country exerts its power and influence on other countries through military or diplomatic forms. Imperialism is also when a country is ruled by an emperor.
4 examples of imperialism:
Europe and Africa. This example includes most of Europe. The European countries got competitive and started to make claims and take parts of Africa for their country.
England and India. England took over India and controlled them for quite some time. They taught in their schools, taught them Christianity, English, they traded and sold their goods, put taxes on imported goods and controlled many other parts of the country.