Tygodnik Solidarność was a Polish weekly magazine. Started and published by the Solidarity movement on April 3, 1981, it was banned by the People’s Republic of Poland following the martial law declaration from December 13, 1981, and the thaw of 1989. It was legalized in June 1989 after the Polish legislative elections.
(You can read more about the different methods of nonviolent protest in Gene Sharp’s book The Politics of Nonviolent Action. Access CSA’s catalogue of Sharp’s methods here, or download the full list of 198 methods here.)