Your challenge if you choose to accept it is to have the world be as reactionary as possible with as many reactionary government in power. To clarify this would mean what we in OTL would consider reactionary such as monarchism, religion-dominated society, traditional gender roles and other traditional cultural practices should dominate. Things such as Republicanism, democracy, Liberalism, Socialism, Communism and Egalitarianism should be marginalized as much as possible.
You can use any series of PoDs as long as they are not before 1900. That gives over 100 years and two world wars to work with.