On August 5, 1937, the USSR started the implementation of the secret operational order of the NKVD No. 00447 "On the repression of former kulaks, criminals and other anti-Soviet elements", approved by the Politburo of the Central Committee of the All-Union Communist Party of Bolsheviks on July 31, 1937. In fact, on this day, one of the most large-scale and bloody repressive campaigns of the Soviet government started. The number of its victims is estimated at hundreds of thousands of people. In Kiev and the region, according to historians, the notorious order subjected to implementation even earlier - as early as August 3, 1937.