Nazism is a fascist ideology and political system that incorporates a dictatorship, fervent antisemitism, anti-communism, anti-Roma, anti-Slavism, scientific racism, white supremacy, Nordicism, nationalism, social Darwinism and the use of eugenics. It was popularised in Germany by Adolf Hitler, who led the “National Socialist” Nazi Party, implementing the genocide of Jewish people and other minorities as part of the Holocaust. Neo-Nazism consists of post-World War II political movements seeking to revive and implement the ideology of Nazism.