Racism is a form of discrimination against people based on their nationality or skin color. It developed as a way for some people to feel superior to others who are different. Racism decreases human rights and was used in Europe in the 19th century to justify white supremacy over other races. In Argentina, immigrants from nearby countries like Bolivia, Peru and Cuba often face racism in the form of hurtful jokes, unfair treatment at work and school, despite many being legal immigrants. We must learn to accept people of all backgrounds if we want to live together in peace.