Blutmai

Blutmai (, ) was an outbreak of political violence that occurred in Berlin from 1 to 3 May 1929.

It occurred when the Communist Party of Germany (KPD) held May Day marches in defiance of a ban on public gatherings in Berlin ordered by the city's police chief Karl Zörgiebel of the Social Democratic Party (SPD). The Berlin Police responded with an immediate and harsh crackdown. Often without regard to whether the persons involved were demonstrators or bystanders, they forcibly and sometimes violently dispersed the crowds that formed. As the day progressed, street battles developed between the protestors and the police, who used firearms and armoured cars. The violence lasted until the afternoon of 3 May, mostly in the working-class neighbourhoods of Wedding and Neukölln.