State power can take many different forms. It depends on a number of factors: historical, economic, social. Perhaps it is impossible to find a country in which the government would never change. After all, the state apparatus, willy-nilly, must react to all the changes taking place in society. What, for example, was the nature of power in Russia in different eras?
Power in Russia from the era of Ancient Rus to the 16th century
From ancient times until the moment when a single mighty state of Kievan Rus arose, the supreme power "in the localities" was in the hands of the rulers - princes. Initially, the prince was elected by a squad from among the most experienced and honored warriors, then his power became hereditary. The father on the princely throne was succeeded by the eldest son or the closest male relative.
Gradually, the most powerful and influential princes became the rulers of Kiev, who subjugated other princes and forced them to recognize their power. The Kiev prince began to be called "great". But his power was not absolute, since under Yaroslav the Wise (first half of the 11th century) a code of laws "Russian Truth" was developed. According to this document, the prince was obliged to act not according to his will and arbitrariness, but according to the law.
After the death of Yaroslav the Wise, civil strife soon began, and Russia fell apart into separate parts. This led to the fact that the Russian principalities could not repel the Mongol-Tatar invasion in the first half of the 13th century and for more than two centuries fell under the rule of the Golden Horde.
After the strengthening of the Moscow principality, and especially the battle on the Kulikovo field in 1380, Moscow became the center of the Russian lands. Its rulers accepted the title of "Grand Duke" and finally got rid of the power of the Golden Horde in 1480. And in 1547 the Grand Duke Ivan IV, the future Ivan the Terrible, took the title of tsar. Since then, power in Russia has taken the form of an absolute monarchy.
How the power in Russia changed from the 16th century to the present day
Until 1905, the nature of power in Russia remained unchanged. The king ruled the country (since 1721 - the emperor), who possessed absolute power and was not obliged to report to anyone. His entourage (Boyar Duma, then the Senate) had only an advisory voice. Only in October 1905, Emperor Nicholas II was forced to somewhat limit his power, agreeing to convene the State Duma.
In February 1917, a revolution took place in Russia, the monarchy was overthrown and the government took the form of a bourgeois-democratic republic. But in the autumn of the same year, a coup took place and the so-called "Soviet power" was established, which set the goal of building a classless communist society. In fact, the government took the form of the dictatorship of the ruling party. And since 1991, Russia has become a presidential republic.