This attitude was used to justify slavery and colonialism.

It asserted that Italians were part of the white race, and utilized white supremacism to justify colonialism.

French historian Fernand Braudel in the 1920s invoked the conception of the Mediterraneanism including claims of Mediterranean universalism to justify French colonialism in Algeria.

Historically, claims that races differed in intelligence were used to justify colonialism, slavery, Social Darwinism, and eugenics.

Claims of races having different intelligence were used to justify colonialism, slavery, social Darwinism, and racial eugenics.

Often, the phrase "ignoble savage" was used and abused to justify colonialism.

This stereotype was used to justify European colonialism in Turkey, India, and China.

Darwin's theory did as much to justify colonialism in the 19th century as Columbus's so-called "discovery" of the "New World" did in the 15th.

The alleged superiority of a civilization justifies colonialism and imperialism.

Victorian-era social Darwinists like Herbert Spencer adopted evolutionary theory to justify colonialism and imperialism, opposition to labor unions and the withdrawal of aid to the sick and needy.