Kievan Rus' adopted Orthodox Christianity from the Byzantine Empire.
The Grand Duchy of Moscow proclaimed the Tsardom of Russia.
Russia's monarchic rule was abolished, leading to the establishment of the Russian SFSR.
The Soviet Union was established with the Russian SFSR as the principal constituent.
The Soviet Union played a crucial role in the Allied victory on the Eastern Front.
The Russian SFSR emerged as the Russian Federation after the Soviet Union's dissolution.
The Soviet government structure was abolished, and a new constitution was adopted.
Russia engaged in military conflict with Georgia.
Russia annexed Crimea amidst ongoing conflict with Ukraine.
Russia annexed four additional regions from Ukraine during the conflict.