Scientist

Ukraine in 1990-s., Perestroika, Ukraine in 1986–1991, 26 April 1986 - Chernobyl disaster, The 1991 referendum in Ukraine and 2 more anniversaries

2022 - full scale invasion of Russia into Ukraine, March 5th, 1953 - Death of Josif V. Stalin, The Revolution of Dignity (21.11. 2013 – 22.02. 2014), Ukraine in 1990-s.

Ukraine in 1990-s., 2014 - first invasion of Russia into Ukraine

Ukraine in 1990-s., Perestroika, Ukraine in 1986–1991, The Ukrainian declaration of independence in 1991, The 1991 referendum in Ukraine and 6 more anniversaries