Wojtek
Of the millions before WWII, there were thousands of Polish Jews after the war. Cf., "Shoah, " directed by J.P.Sartre friend, Claude Lanzmann.
In '68, Mieczyslaw Moczar led an anti-semitic purge of the PUWP and other institutions. http://www.wikipedia.org/wiki/Anti-Semitism
Immediately following this was a nation-wide anti-Jewish purge, removing Jews from their jobs in the government, universities, and many other fields. This purge was directed by the minister of the interior, and head of the security police, Mieczyslaw Moczar.
-- Michael Pugliese