History of socialism under challenge from Solidarność, or Solidarity, a labor union under the leadership of Lech Wałęsa. The union was sufficiently threatening to the government that on 13 December 1981, the head of state, Wojciech Jaruzelski declared martial law, suspended the union, and imprisoned most of its leaders. Mikhail Gorbachev (born 1931), who took control in 1985, was the first Soviet leader to have been born after the October revolution. He is remembered for three initiatives: "glasnost", "perestroika", and the "Frank Sinatra doctrine". "Glasnost", or "openness", was Gorbachev's term for allowing public debate in the Soviet Union to an unprecedented degree. "Perestroika"
Mikhail Gorbachev ordered him to punish Fagien B. Sadykov, a Stavropol-based agronomist whose ideas were regarded as critical of Soviet agricultural policy; Gorbachev ensured that Sadykov was fired from teaching but ignored calls for him to face tougher punishment. Gorbachev later related that he was "deeply affected" by the incident; "my conscience tormented me" for overseeing Sadykov's persecution. In April 1970, Yefremov was promoted to a higher position in Moscow and Gorbachev took his job. This granted Gorbachev significant power over the Stavropol region. He had been personally vetted for the position by senior Kremlin leaders and was informed of their decision