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"
The Age of Openness Journalist Jonathan Fenby argues that while Dikötter sometimes built his cases on fragile foundations, he nevertheless ""marshals a good case that China in this period was much more vibrant, innovative and open than has been generally supposed."" The Age of Openness The Age of Openness: China Before Mao is a 2008 book by historian Frank Dikötter. It provides an account of the Republican era of Chinese history, spanning from the early 20th century to the Communist Party takeover in 1949. In it, Dikötter describes a period of unprecedented openness during which China was actively pursuing engagement with the world, as