When Russia Emerged
According to mainstream history, there was first Kievan Rus', then a series of principalities, then the Russian Tsardom, and finally the Russian Empire from 1721 to 1917. I would challenge this. Russia as a state emerged in the mid-19th century. This period is known as the reforms of Alexander II.
I'll go through the list from Wikipedia:
Abolition of serfdom (1861)
Financial reform (1863) - creation of the Central Bank and banking system
Higher education reform (1863)
Zemsky reform (1864)
Judicial reform (1864)
Censorship reform (1865)
Municipal self-government reform (1870)
Secondary education reform (1871)
Military reform (1874)
These reforms were in fact the launch of a new state. When a new state emerges, a raft of decrees must be passed throughout the country, establishing a system of governance. The best way to cover this up is to pass it off as reforms—that is, transformation, correction.
Another important fact is that the black, yellow, and white national flag of Russia was only adopted in 1858. Before that, Russia had no official national flag, which directly indicates the absence of a state as such.