Personally, I think it is better to master this.
In recent years, both historians and archaeologists have gradually clarified some vague understandings before the Ming and Qing Dynasties. Although there are still some controversial issues, the big historical framework has been basically determined. And this historical period is closer to today. Historical materials are rich.
Qin and Han documents and Chang 'an cultural tourism. This involves many aspects of historical geography, especially those with geographical restrictions, which is relatively difficult.
Literature and historical materials of tang dynasty. This is far from the present and can be used as the future research and development direction.
for reference only