<Li> End of communist rule in Hungary </Li> <Li> German reunification) </Li> <Ul> <Li> (Jeltoqsan </Li> <Li> Nagorno - Karabakh War </Li> <Li> 9 April tragedy </Li> <Li> Black January </Li> <Li> Osh riots </Li> <Li> War of Laws </Li> <Li> Dushanbe riots </Li> <Li> January Events </Li> <Li> The Barricades </Li> <Li> Referendum </Li> <Li> Union of Sovereign States </Li> <Li> August Coup </Li> <Li> Ukrainian independence (referendum) </Li> <Li> Belavezha Accords </Li> <Li> Alma - Ata Protocol) </Li> </Ul> <Li> Nagorno - Karabakh War </Li>

When was the ussr created and what year did it collapse