Mikhail Gorbachev major campaign to limit alcohol consumption, which Gorbachev—who believed it would improve health and work efficiency—oversaw. His wife keenly supported the measure. As a result, crime rates fell and life expectancy grew slightly between 1986 and 1987. The reform had significant costs to the Soviet economy, resulting in losses of up to $100 billion between 1985 and 1990. Gorbachev later considered the campaign to have been an error. In April 1986 the Chernobyl disaster occurred; in the immediate aftermath, officials fed Gorbachev incorrect information to downplay the incident. As the scale of the disaster became apparent, 336,000 people were evacuated
Premier of the Soviet Union Premier of the Soviet Union The Premier of the Soviet Union () was the head of government of the Union of Soviet Socialist Republics (USSR). Twelve individuals became Premier during the time span of the office. Two of the twelve Premiers died in office of natural causes (Vladimir Lenin and Joseph Stalin), three resigned (Alexei Kosygin, Nikolai Tikhonov and Ivan Silayev) and three had the offices of party secretary and Premier simultaneously (Lenin, Stalin and Nikita Khrushchev). The first Premier was Lenin, who was inaugurated during 1922 after the Treaty on the Creation of the Soviet Union. Ivan Silayev spent