Some academic writers discuss states and governments in terms of "models".
An independent
Among … Meer weergeven

Head of state is the highest-ranking constitutional position in a sovereign state. A head of state has some or all of the roles listed below, often depending on the constitutional category (above), and does not … Meer weergeven

In a republic, the head of state nowadays usually bears the title of President, but some have or have had other titles. Titles commonly used by monarchs are King/Queen or Emperor/Empress, but also many othe… Meer weergeven

• The polis in Greek Antiquity and the equivalent city states in the feudal era and later, (many in Italy, the Holy Roman Empire, the Moorish taifa in Iberia, essentially tribal-type but urbanised regions throughout the … Meer weergeven

Whenever a head of state is not available for any reason, constitutional provisions may allow the role to fall temporarily to an assigned person or collective body. In a republic, this is - depending on provisions outli… Meer weergeven

In early modern Europe, a single person was often monarch simultaneously of separate states. A composite monarchy is a retrospective label for those cases where the states were governed entirely … Meer weergeven

Since antiquity, various dynasties or individual rulers have claimed the right to rule by divine authority, such as the Mandate of Heaven and the divine right of kings. Some monarchs even claimed divine anc… Meer weergeven