What if the Bronze Age Collapse Never Happened? (Alternative History)

The Civilizations of the Bronze age rivaled even those of the Romans and Greeks in their power and prosperity. The Bronze age saw for the first time, a complex trade network span the entire known globe. But then, seemingly out of nowhere and inexplicably almost every civilization completely collapsed. The written word vanished and recorded history stopped. But what if, for whatever reason, this did not happen. What if the bronze age collapse, never happened?