Government reform of Peter the Great
The government reforms of Peter I aimed to modernize the Tsardom of Russia (later the Russian Empire) based on Western European models. Peter ascended to the throne at the age of 10 in 1682; he ruled jointly with his half-brother Ivan V. After Ivan's death in 1696, Peter started his series of sweeping reforms.
Source: Wikipedia — Government reform of Peter the Great (CC BY-SA 4.0)