Chernobyl disaster due to the ballooning in costs for new nuclear reactor safety system standards and the legal costs in dealing with the increasingly hostile/anxious public opinion, there was a precipitous drop in the rate of new startups after 1986. The accident also raised concerns about the cavalier safety culture in the Soviet nuclear power industry, slowing industry growth and forcing the Soviet government to become less secretive about its procedures. The government coverup of the Chernobyl disaster was a catalyst for glasnost, which "paved the way for reforms leading to the Soviet collapse". On 26 April 1986, at 01:23 (UTC+3), reactor
Chernobyl land of Kievan Rus′. The first known mention of Chernobyl is from an 1193 charter, which describes it as a hunting-lodge of Knyaz Rurik Rostislavich. In the 13th century, it was a crown village of the Grand Duchy of Lithuania. The village was granted to Filon Kmita, a captain of the royal cavalry, as a fiefdom in 1566. The province where Chernobyl is located was transferred to the Kingdom of Poland in 1569, and later annexed by the Russian Empire in 1793. Prior to the 20th century, Chernobyl was inhabited by Ukrainian, some Polish peasants and a relatively large number