When was Estonia established?

Estonia declared its independence from the Russian Empire on 23 February 1918. This was immediately followed by a 9-month German occupation. After the Germans withdrew, a war of independence from the Soviet Union was fought 1918-1920. Estonia became a member of the League of Nations in 1921. In 1939 Estonia was forcefully annexed by the Soviet Union. During World War 2 it was occupied by Germany and reconquered by the Soviets. An insurgency against the Soviet Union lasted, some reports say, into the 1950s. Estonian sovereignty was reasserted on 16 November 1989 and formal independence was declared on 20 August 1991, reconstituting the pre-1940 state, during the Soviet military coup attempt in Moscow. The last Russian troops left on 31 August 1994.
Estonia declared its independence from the Russian Empire on 23 February 1918. This was immediately followed by a 9-month German occupation. After the Germans withdrew, a war of independence from the Soviet Union was fought 1918-1920. Estonia became a member of the League of Nations in 1921. In 1939 Estonia was forcefully annexed by the Soviet Union. During World War 2 it was occupied by Germany and reconquered by the Soviets. An insurgency against the Soviet Union lasted, some reports say, into the 1950s. Estonian sovereignty was reasserted on 16 November 1989 and formal independence was declared on 20 August 1991, reconstituting the pre-1940 state, during the Soviet military coup attempt in Moscow. The last Russian troops left on 31 August 1994.