The history of fascist ideology is long and draws on many sources. Fascists took inspiration from sources as ancient as the Spartans for their focus on racial purity and their emphasis on rule by an elite minority. Researchers have also seen links between fascism and the ideals of Plato, though there are key differences between the two. Italian Fascism styled itself as the ideological successor to Ancient Rome, particularly the Roman Empire. Georg Wilhelm Friedrich Hegel's view on the absolute authority of the state also strongly influenced fascist thinking. The 1789 French Revolution was a major influence insofar as the Nazis saw themselves as fighting back against many of the ideas which it brought to prominence, especially liberalism, liberal democracy and racial equality, whereas on the other hand, fascism drew heavily on the revolutionary ideal of nationalism. The prejudice of a "high and noble" Aryan culture as opposed to a "parasitic" Semitic culture was core to Nazi racial views, while other early forms of fascism concerned themselves with non-racialized conceptions of their respective nations.
Common themes among fascist movements include: authoritarianism, nationalism (including racial nationalism and religious nationalism), hierarchy, elitism, and militarism. Other aspects of fascism – such as a perception of decadence, anti-egalitarianism and totalitarianism – can be seen to originate from these ideas. Roger Griffin has proposed that fascism is a synthesis of totalitarianism and ultranationalism sacralized through a myth of national rebirth and regeneration, which he terms "palingenetic ultranationalism".
