• After the Russian Revolution of 1917, Estonia declares independence.

  • Following the Molotov-Ribbentrop Pact between Nazi Germany and the Soviet Union, Soviet troops invade the Baltic region and incorporate Estonia along with the two other Baltic republics into the Soviet Union. 

  • The Soviet government recognizes the independence of the Baltic Republics.

  • Estonia formally admitted to both the North Atlantic Treaty Organization (NATO) and the European Union (EU).

  • Estonia adopts the Euro as its currency.

Sources:

BBC News open_in_new
Britannica open_in_new