The mayan kings and many rulers of eurasian empires both legitimized their authority through their religious practices and excuse of divine right.The divine right of kingship, is a religious doctrine of royal and political legitimacy where it asserts that a royal is deriving his right to rule directly from the will of God and not to earthly authority.
The Congress of Vienna and the resulting Concert of Europe, aimed at creating a stable and peaceful Europe after the Napoleonic Wars, succeeded in creating a balance of power and peaceful diplomacy for almost a decade.