I grew up reading about Tintin and his little dog, Snowy.  In one of the books, Tintin stumbles upon a diamond smuggling ring operating in the Congo.  While there, he meets some of the natives, the Congolese. The Congolese were depicted as dark-skinned, thick-lipped brutes who could not form a proper sentence.  When Tintin gave a man medicine, they automatically thought of it as magic and hailed him as a sorcerer.  As a child, I honestly did not even understand that they were human.  I assumed that the characters were just some brutes living in the forest, without a nation or any sort of government.  They were never explicitly stated to be Congolese, but it became obvious through the story.

The reason they were drawn this way was because the author of Tintin, Herge, was very imperialistic.  He drew them so ridiculously, that I could not tell that they were supposed to be people, much less representative of a group of people, which I believe Herge was trying to cover up.