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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,  

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