From the different systems of the barbarians and the Chinese to the integration of the Chinese and the barbarians, the "China" identity during the Spring and Autumn Period and the Warring States Period.
When the Qing Dynasty concubines were sleeping, why did they strip their clothes and wrap them up and carry them in? In fact, it is for the convenience of the emperor
Should I turn on the air conditioner first or close the window first when I blow up the air conditioner? The order is much more important than you think