Shia-Sunni, Turkey-Greek, Catholic-Reformation are a few that come to mind. Take a look at Middle East and you would see long standing polarization.. Anti-semit

Shia-Sunni, Turkey-Greek, Catholic-Reformation are a few that come to mind. Take a look at Middle East and you would see long standing polarization.. Anti-semitism is also another long standing polarization. Slavery was abolished, but you still have people flying confederate flags and arguing for slavery (in a more modern rendition)