There are so many historical backgrounds in Tomb Raiding Notes, which ones have real history to textual research?

As far as I know, there is truth and falsehood. Strictly speaking, some of them are adapted from history, but they are not completely true. For example, Wang Zanghai, who runs through the whole story, has a prototype, but it is far from mysterious and great. And the background of Tomb Raider is quite grand. Some tombs come from a long time ago, which can be said to be prehistoric myths, such as the Queen Mother of the West, and some come from very remote and barren places, such as Medog in Tibet, King Wannu in Changbai and Yaozhai in Bajiao, Guangxi. This is beyond the traditional historical category.