Before colonialism Africans had no written language, no wheel as we know it, schools, hospitals, not even normal clothing.
Um...what? Go read about the huge continent of Africa. You don't know that Africa holds the second oldest university in the world
? Sounds like you've been swalling the Ooga booga kongo raindance lies.
And people across the empire were civilized.
Yes, authoritarianism, massacres, genocide, and war crimes "civilised" them.