Czech students take to the streets to mark 20th anniversary of fall of communist rule . -- CNN 's Phil Black and Fionnuala Sweeney contributed to this report . The protests were organized by a group called Students for Democracy and against Dictatorship (SDD), which has been calling on Czechs not to vote in parliamentary elections scheduled for May 22. The march in 1989 was in memory of the students who perished under the Nazis .
Czech students take to the streets to mark 20th anniversary of fall of communist rule . The protests were organized by a group called Students for Democracy and against Dictatorship (SDD), which has been calling on Czechs not to vote in parliamentary elections scheduled for May 22. The march in 1989 was in memory of the students who perished under the Nazis .