6 February – Satirist Janusz Szpotański was sentenced to three years in prison for “preparing and sharing for the purposes of dissemination material harmful to the interest of the State.”[2]
16 March – 1968 Polish political crisis: A demonstration was held in Gdańsk, attended by around 20,000 people. About 3,000 ZOMO officers and ORMO volunteers were deployed to suppress it. Nearly 300 protesters had been arrested.[3]