Beginning of the Kengir uprising in the Gulag.

The Kengir uprising was a prisoner rebellion that occurred in Kengir (Steplag), a Soviet MVD special camp for political prisoners, during May and June 1954. Its duration and intensity distinguished it from other Gulag rebellions during the same period, such as the Vorkuta uprising and Norilsk uprising.

The Gulag was a system of forced labor camps in the Soviet Union. The word Gulag originally referred only to the division of the Soviet secret police that was in charge of running the forced labor camps from the 1930s to the early 1950s during Joseph Stalin's rule, but in English literature the term is popularly used for the system of forced labor throughout the Soviet era. The abbreviation GULAG (ГУЛАГ) stands for "Glávnoye upravléniye ispravítel'no-trudovýkh lageréy ", but the full official name of the agency changed several times.

May 16 is the 136th day of the year in the Gregorian calendar; 229 days remain until the end of the year.