If you want to know what era your server is in, just look at the text displayed in the middle right above the screen. If you can't see these four words on the laptop, you can remove the check mark of window mode in the game settings and switch to full screen mode.
I am an old player in the unique zone of Datang. I hope your national war won't meet us. Everyone knows that we have closed the restricted area nearly 30 times. Very sick. . . Hey hey! !
If you think my answer is helpful to you, please adopt it and hope to communicate more in the future.