| gptkbp:instanceOf | gptkb:revolutionary 
 | 
                        
                            
                                | gptkbp:alsoKnownAs | gptkb:Märzaktion 
 | 
                        
                            
                                | gptkbp:arrested | over 3,000 arrested 
 | 
                        
                            
                                | gptkbp:casualties | over 100 killed 
 | 
                        
                            
                                | gptkbp:cause | Communist agitation Government crackdown on leftist workers
 
 | 
                        
                            
                                | gptkbp:country | gptkb:Germany 
 | 
                        
                            
                                | gptkbp:endDate | 1921-03-29 
 | 
                        
                            
                                | gptkbp:historicalName | gptkb:Weimar_Republic 
 | 
                        
                            
                                | gptkbp:location | gptkb:Hamburg gptkb:Leipzig
 gptkb:Merseburg
 gptkb:Central_Germany
 gptkb:Halle
 gptkb:Mansfeld
 
 | 
                        
                            
                                | gptkbp:notableLeader | gptkb:Clara_Zetkin gptkb:Ernst_Thälmann
 gptkb:Paul_Frölich
 gptkb:Paul_Levi
 gptkb:Heinrich_Brandler
 
 | 
                        
                            
                                | gptkbp:participants | gptkb:Communist_Party_of_Germany gptkb:German_government
 police
 paramilitary groups
 
 | 
                        
                            
                                | gptkbp:relatedEvent | gptkb:Kapp_Putsch gptkb:German_Revolution_of_1918–1919
 gptkb:Ruhr_Uprising
 
 | 
                        
                            
                                | gptkbp:result | Suppression of uprising Defeat of Communist Party of Germany
 
 | 
                        
                            
                                | gptkbp:significance | Led to internal crisis in Communist Party of Germany Major defeat for German communists
 
 | 
                        
                            
                                | gptkbp:startDate | 1921-03-21 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Kommunistische_Partei_Deutschlands 
 | 
                        
                            
                                | gptkbp:bfsLayer | 5 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | March Action 1921 
 |