sentences:  He built other unique siege weapons, aside from the Helepolis, some for Demetrius I of Macedon, and others for various other leaders and warlords.Of these other siege weapons was a large battering ram over 60 metres long.Many of his creations had visible effects on future siege engineering, hundreds of years later, and the design for the Helepolis in particular had effects on future designs; the term Helepolis endured for many centuries after the "original", used for any similar, tower-like siege machine.