Some key dates in Estonia’s history:
1918 – Independence proclaimed.
1920 – Peace treaty with Russia signed.
1934 – Prime Minister Konstantin Pats leads bloodless coup and establishes authoritarian rule.
1939 – World War Two: The Soviet Union compels Estonia to accept Soviet military bases.
1940 – Soviet troops march in. Estonia is forcibly incorporated into Soviet Union.
1941 – German troops invade Estonia as part of their invasion of the USSR.
1944 – Soviet forces push back German troops across eastern Europe and Estonia reannexed by the Soviet Union.
1944-50 – Tens of thousands of Estonians deported to Siberia and Central Asia. USSR begins “Russification” with hundreds of thousands of ethnic Russians and other “Soviet people” settling in Estonia.
1988 – Popular Front campaigns for democracy. “Singing revolution” brings a third of the population together in a bid for national unity and self-determination.
1991 – Communist rule collapses. Soviet government recognizes the independence of the Baltic republics.
1994 – Russian troops leave. Estonia joins Partnership for Peace, allowing limited military cooperation with Nato.
852 people die when the MS Estonia sinks en route from Tallinn to Stockholm, in one of the 20th Century’s worst maritime disasters.
2003 – Estonians vote overwhelmingly to join the European Union.
2004 – Estonia admitted to Nato and is one of 10 new states to join the EU.
2005 – Estonia and Russia sign treaty delineating border. Parliament ratifies border treaty with Russia but defies warnings from Moscow by introducing amendment referring to Soviet occupation. Russia reacts by withdrawing from treaty.
2007 – Parliament passes a law prohibiting the display of monuments glorifying Soviet rule, paving the way for the relocation of a controversial Red Army war memorial in Tallinn.
Estonia becomes the first country to allow internet voting for parliamentary elections.
Authorities relocate the Red Army war memorial in Tallinn. One person is killed and more than 40 injured as protesters, mostly ethnic Russians, try to halt the removal.
2011 – Estonia adopts the euro.
2012 – Estonia and Russia re-start talks on a border treaty.
2014 – Estonia and Russia sign a new treaty ending their border dispute.
Amid tension with the European Union and Nato over Russian intervention in Ukraine, Estonia accuses Moscow of abducting border guard Eston Kohver. Russia says he was on the Russian side of the border and accuses him of spying.
2015 – Nato reinforces its presence in the Baltic states.
Russia returns detained border guard Eston Kohver in return for Aleksei Dressen, imprisoned in Estonia in 2012 on charges of spying for Moscow.
2017 – British troops arrive in Estonia as part of a major Nato mission in the Baltic states to deter what the alliance regards as Russian aggression.
2021 – Kaja Kallas became Estonia’s first woman prime minister.
2022 – Russia invades Ukraine. Estonia is prominent among those giving Ukraine military equipment and political support.