Pontoon bridges at Hellespont
                        
                            GPTKB entity
                        
                    
                Statements (17)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:historical_engineering_project | 
| gptkbp:builtBy | gptkb:Second_Persian_invasion_of_Greece gptkb:Xerxes_I | 
| gptkbp:date | 480 BC | 
| gptkbp:destroyedBy | gptkb:wind | 
| gptkbp:hasBridge | 2 | 
| gptkbp:location | gptkb:Hellespont | 
| gptkbp:material | boats cables wooden planks | 
| gptkbp:mentionedIn | gptkb:Herodotus'_Histories | 
| gptkbp:purpose | to allow Persian army to cross from Asia to Europe | 
| gptkbp:restored | gptkb:Xerxes_I | 
| gptkbp:significance | one of the earliest large-scale pontoon bridges in history | 
| gptkbp:bfsParent | gptkb:Xerxes_the_Great | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | Pontoon bridges at Hellespont |