In 1920 Joseph Stalin called for Slavic migration into Kazakhstan. In the 1940's hundreds of Koreans, Crimean taters, and Germans were forced to move to Kazakhstan. From around 1954-1964 about two million people, mainly Russians, moved to Kazakhstan when a campaign was launched to develop the Virgin islands by Soviet leader Nikita Khrushchev. At this point the percentage of Kazakhs in the republic dropped to 30%.
In 1937 Stalin formally created the Kazakh Soviet Socialist Republic
In 1949 at the nuclear test plant, Semipalatinsk in eastern Kazakhstan, the first nuclear test explosion took place.
In 1986 around 3,000 people took part in protests in Almaty after the soviet leader Mikhail Gorbachev appoints Gennadiy Kolbin , an ethnic Russia, replacing Dinmukhamed Kunayev, an ethnic Kazakh.
1990-supreme soviets elect Mursultan Nazarbayevas the first Kazakh president. 1991- Kazakhstan announces their independence from the Soviet Union and joins the Commonwealth of Independent States.