Complex sentence: The peaceful Singing Revolution starting in 1987 called for Baltic emancipation of Soviet rule, it ended with the dissolution of the Soviet Union in 1991 and Latvia declared the restoration of its "de facto" independence on August 21,1991.
Split into simpler sentences: The peaceful Singing Revolution starting in 1987 called for Baltic emancipation of Soviet rule. It ended with the dissolution of the Soviet Union in 1991, and Latvia declared the restoration of its "de facto" independence on August 21,1991.