Russia gains control over the area of modern-day Estonia.
The Russian empire collapses during WWI and Estonia declares independence.
Russia and Estonia sign a peace agreement in which Russia recognizes Estonia's independence; Estonia adopts its first constitution in which it establishes a parliamentary government.
The Soviet Union forcibly incorporates Estonia into the Soviet Union as part of a pact with Nazi Germany; Estonia is named the Estonian Soviet Socialist Republic (E.S.S.R.).
A coup against the U.S.S.R. occurs, leading to the collapse of Communist rule; Estonia declares independence, which is recognized by the Soviet government.
Estonia joins the Partnership for Peace, which signals military cooperation with NATO.
Estonia joins both NATO and the European Union.
Estonia adopts the Euro as its currency.