1, first deny 2 and 3. There has been a lot of research on the Tang tombs, and if we do a preliminary study, we will gild the lily. What is the concept of non-Central Plains? I'm afraid it's impossible to make such a big margin. Unless it belongs to a site, or several pieces or a group of bronzes.
2. ExceptNo. 1, even the excavation report and investigation report of the existing relics of Xia and Shang Dynasties have been published. If you do a comprehensive study, it is difficult to write new ideas, which is also the taboo of writing an article at the beginning.
3. The third question can be broken through because of geographical restrictions, but at the same time, we should grasp the history of the whole ceramic development and occupy the existing excavation materials, and make our own inferences according to the existing research results.