White supremacy is where white people think they are better than others because of their skin color or belief.  It really started with white privileges, where whites were given an advantage over blacks.  Nobody really thought of it as racisms back then, but it was the start of it.  White supremacy grew as more African Americans arrived in America, but when the Civil War stopped slavery groups started to form.  White supremacists groups such as the KKK and Neo Nazis still found ways to scare and hurt black communities though.  The KKK and Neo Nazis still exist today and terrorize black people, but things can and are being done to stop them.  White supremacy exists in most places with mostly white population, such as America, Europe, Australia, New Zealand, South Africa, and Latin America. To stop white supremacy people just have to accept that people look different and have different beliefs, but that doesn't make them bad.  If this happened then white supremacy could be stopped and eventually all racism could also be conquered.