In the 19th century it was common to classify people by race. This shows such a classification; based on work by Karl Ernst von Baer, 1862

A racist poster for elections in Georgia, in 1866

American propaganda against the Japanese during the Second World War

Banner held up by a person in a "White Pride" rally in Calgary, Canada

Racism is the belief in the natural superiority of one race over another. It may mean prejudice, discrimination, or antagonism against other people because they are of a different race or ethnicity.

Racism can also be used to describe the social, legal, cultural, economic, and political processes that are a result of those beliefs.