| gptkbp:instanceOf | gptkb:archaeological_site gptkb:linguistic_theory
 
 | 
                        
                            
                                | gptkbp:contrastsWith | gptkb:Anatolian_hypothesis gptkb:Out_of_India_theory
 gptkb:Armenian_hypothesis
 
 | 
                        
                            
                                | gptkbp:debatedBy | gptkb:linguist archaeologists
 geneticists
 
 | 
                        
                            
                                | gptkbp:focusesOn | gptkb:Pontic–Caspian_steppe gptkb:Sredny_Stog_culture
 gptkb:Yamnaya_culture
 
 | 
                        
                            
                                | gptkbp:influencedBy | gptkb:artifacts genetic studies
 linguistic evidence
 
 | 
                        
                            
                                | gptkbp:namedAfter | Kurgan burial mounds 
 | 
                        
                            
                                | gptkbp:period | 4th millennium BCE 3rd millennium BCE
 
 | 
                        
                            
                                | gptkbp:proposedBy | gptkb:Marija_Gimbutas 1950s
 Indo-European languages spread via migrations
 Proto-Indo-European homeland was in the Pontic–Caspian steppe
 
 | 
                        
                            
                                | gptkbp:region | gptkb:Eurasian_Steppe 
 | 
                        
                            
                                | gptkbp:relatedTo | gptkb:Indo-European_languages gptkb:Indo-European_migrations
 steppe cultures
 
 | 
                        
                            
                                | gptkbp:supportedBy | genetic data archaeological findings
 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Marija_Gimbutas gptkb:Pontic-Caspian_steppe
 gptkb:Indo-Aryan_migration
 
 | 
                        
                            
                                | gptkbp:bfsLayer | 6 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Kurgan hypothesis 
 |