True the current page is way to unsourced thus opening the door for disucssion such as the Italy one above I have added some sources for three current great power and will try and add further refs for the current great power Unfortunately I am not a historian for Asian history so I do not really know whether or not all these Dynasties were Great Powers I think your right thought it is an induatrial age term Purging unreferenced info is probably our only and best option Regards