There is the 1968 anti-semitic purge in Poland. Maybe Kal can tell us something about it
https://en.wikipedia.org/wiki/1968_Polish_political_crisis The Polish 1968 political crisis, also known in Poland as March 1968 or March events (Polish: Marzec 1968; wydarzenia marcowe), pertains to a series of major student, intellectual and other protests against the government of the Polish People's Republic. The crisis resulted in the suppression of student strikes by security forces in all major academic centres across the country and the subsequent repression of the Polish dissident movement. It was also accompanied by mass emigration following an antisemitic (branded "anti-Zionist") campaign waged by the minister of internal affairs, General Mieczysław Moczar, with the approval of First Secretary Władysław Gomułka of the Polish United Workers' Party (PZPR). The protests coincided with the events of the Prague Spring in neighboring Czechoslovakia – raising new hopes of democratic reforms among the intelligentsia. The unrest culminated in the Warsaw Pact invasion of Czechoslovakia on 20 August 1968
